Initial push of test utility
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..94809b7
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,2 @@
+Unfortunately, given the nature of the tools provided here, we do not
+accept contributions.
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..7a4a3ea
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,202 @@
+
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diff --git a/README.md b/README.md
new file mode 100644
index 0000000..1fe2cdf
--- /dev/null
+++ b/README.md
@@ -0,0 +1,83 @@
+# Maps Booking
+
+This repo contains tools and code samples for partners that wish to integrate
+with [Reserve](https://www.google.com/maps/reserve/)
+
+## Testing Client
+
+Before using the test utility, the Go programming language must be installed
+on your workstation. A precompiled Go binary for your operating system can
+be [found here](https://golang.org/dl/)
+
+This guide will assume you're using the default GOPATH and subsequent GOBIN.
+For a comprehensive explanation of the GOPATH env variable please see
+[this document](https://golang.org/dl/) by the Go team.
+
+### Installing the utility
+
+First, build your Go directory structure. A comprehensive guide on the intended
+structure of Go code can be [found here.](https://golang.org/doc/code.html)
+
+    mkdir -p $HOME/go/bin $HOME/go/pkg $HOME/go/src/github.com/maps-booking
+
+Next, retrieve the utility from the
+[maps-booking repository](https://maps-booking.googlesource.com/)
+
+    git clone https://maps-booking.googlesource.com/test_client $HOME/go/src/github.com/maps-booking/
+
+Lastly, download all dependencies and install the tool.
+
+    go get -d $HOME/go/...
+    go install $HOME/go/src/github.com/maps-booking/testclient/main.go
+
+### Using the utility
+
+After following the install steps above an executable should now live in
+
+    $HOME/go/bin/main
+
+All available flags can be displayed using the '--help' flag. The currently
+accepted flags are:
+
+    -all_tests
+        Whether to test all endpoints.
+    -availability_feed string
+        Absolute path to availability feed required for all tests except health.
+        Feeds can be in either json or pb3 format
+    -booking_status_test
+        Whether to test the GetBookingStatus endpoint.
+    -booking_test
+        Whether to test the CreateBooking endpoint.
+    -check_availability_test
+        Whether to test the CheckAvailability endpoint.
+    -health_check_test
+        Whether to test the Health endpoint.
+    -list_bookings_test
+        Whether to test the ListBookings endpoint
+    -num_test_slots int
+        Maximum number of slots to test from availability_feed.
+        Slots will be selected randomly (default 10)
+    -output_dir string
+        Absolute path of dir to dump log file.
+    -rescheduling_test
+        Whether to test the UpdateBooking endpoint.
+    -rpc_timeout duration
+        Number of seconds to wait before abandoning request (default 30s)
+    -server_addr string
+        Your grpc server's address in the format of
+        host:port (default "example.com:80")
+
+Example Usage:
+
+    bin/main -health_check_test=true -check_availability_test=true
+    -output_dir="/tmp" -server_addr="localhost:50051”
+    -availability_feed="/tmp/test.json"
+
+### Parsing the output
+
+The test utility will output a file with the prefix 'grpc_test_client_log_'
+followed by a timestamp in RFC3339 format. The output file contains a
+complete log of all Requests and Responses sent/received by the testing tool as
+well as diffs of the expected response in the event of errors.
+Similar to a compiler, an overview of the entire run can be found at the end
+of the file for user friendly digestion.
diff --git a/api/api.go b/api/api.go
new file mode 100644
index 0000000..4379df2
--- /dev/null
+++ b/api/api.go
@@ -0,0 +1,281 @@
+/*
+Copyright 2017 Google Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Package api contains validation wrappers over BookingService endpoints.
+package api
+
+import (
+	"errors"
+	"fmt"
+	"log"
+	"sort"
+	"time"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/golang/protobuf/ptypes"
+	"github.com/google/go-cmp/cmp"
+	"github.com/maps-booking/utils"
+	"golang.org/x/net/context"
+	"google.golang.org/genproto/protobuf/field_mask"
+	"google.golang.org/grpc"
+
+	mpb "github.com/maps-booking/bookingservice"
+	fpb "github.com/maps-booking/feeds"
+	hpb "google.golang.org/grpc/health/grpc_health_v1"
+)
+
+const (
+	userID    = "0"
+	firstName = "Jane"
+	lastName  = "Doe"
+	telephone = "+18007897890"
+	email     = "test@example.com"
+	service   = "ext.maps.booking.partner.v2.BookingService"
+)
+
+// Bookings is a convenience type for a booking array.
+type Bookings []*mpb.Booking
+
+func (b Bookings) Len() int {
+	return len(b)
+}
+
+func (b Bookings) Less(i, j int) bool {
+	return b[i].GetBookingId() < b[j].GetBookingId()
+}
+
+func (b Bookings) Swap(i, j int) {
+	b[i], b[j] = b[j], b[i]
+}
+
+// HealthCheck performs a gRPC health check.
+func HealthCheck(ctx context.Context, conn *grpc.ClientConn) error {
+	utils.LogFlow("Health Check", "Start")
+	defer utils.LogFlow("Health Check", "End")
+
+	healthCli := hpb.NewHealthClient(conn)
+	req := &hpb.HealthCheckRequest{Service: service}
+	// Ignore cancel. Server will take care of it.
+	resp, err := healthCli.Check(ctx, req)
+	if err != nil {
+		return fmt.Errorf("could not complete health check: %v", err)
+	}
+
+	if diff := cmp.Diff(resp.Status, hpb.HealthCheckResponse_SERVING); diff != "" {
+		return fmt.Errorf("health check invalid (-got +want)\n%s", diff)
+	}
+	log.Println("health check success!")
+	return nil
+}
+
+// CheckAvailability beforms a maps booking availability check on all supplied availability slots. This function
+// will return all slots with a valid return.
+func CheckAvailability(ctx context.Context, a *fpb.Availability, c mpb.BookingServiceClient) error {
+	slot, err := utils.BuildSlotFrom(a)
+	if err != nil {
+		return fmt.Errorf("unable to build request for check availability flow. err: %v, availability record: %v", err, a.String())
+	}
+
+	req := &mpb.CheckAvailabilityRequest{
+		Slot: slot,
+	}
+
+	log.Printf("CheckAvailability Request. Sent(unix): %s, Request %s", time.Now().UTC().Format(time.RFC850), req.String())
+	resp, err := c.CheckAvailability(ctx, req)
+	if err != nil {
+		return fmt.Errorf("invalid response. CheckAvailability yielded error: %v", err)
+	}
+
+	log.Printf("CheckAvailability Response. Received(unix): %s, Response %s", time.Now().UTC().Format(time.RFC850), resp.String())
+	if diff := cmp.Diff(resp.GetSlot(), req.GetSlot(), cmp.Comparer(proto.Equal)); diff != "" {
+		return fmt.Errorf("invalid response. CheckAvailability slots differ (-got +want)\n%s", diff)
+	}
+
+	if resp.GetCountAvailable() == 0 {
+		return errors.New("no count available in response")
+	}
+
+	return nil
+}
+
+// CreateBooking attempts to create bookings from availability slots.
+func CreateBooking(ctx context.Context, a *fpb.Availability, c mpb.BookingServiceClient) (*mpb.Booking, error) {
+	slot, err := utils.BuildSlotFrom(a)
+	if err != nil {
+		return nil, fmt.Errorf("unable to build request for check availability flow. err: %v, availability record: %v", err, a.String())
+	}
+	// Lease currently unsupported.
+	req := &mpb.CreateBookingRequest{
+		Slot: slot,
+		UserInformation: &mpb.UserInformation{
+			UserId:     userID,
+			GivenName:  firstName,
+			FamilyName: lastName,
+			Telephone:  telephone,
+			Email:      email,
+		},
+		PaymentInformation: &mpb.PaymentInformation{
+			PrepaymentStatus: mpb.PrepaymentStatus_PREPAYMENT_NOT_PROVIDED,
+		},
+		IdempotencyToken: utils.BuildIdempotencyToken(a, userID),
+	}
+
+	log.Printf("CreateBooking Request. Sent(unix): %s, Request %s", time.Now().UTC().Format(time.RFC850), req.String())
+	resp, err := c.CreateBooking(ctx, req)
+	if err != nil {
+		return nil, fmt.Errorf("invalid response. CreateBooking  yielded error: %v", err)
+	}
+
+	log.Printf("CreateBooking Response. Received(unix): %s, Response %s", time.Now().UTC().Format(time.RFC850), resp.String())
+	if resp.GetBookingFailure() != nil {
+		return nil, fmt.Errorf("invalid response. CreateBooking failed with booking failure %v", resp.GetBookingFailure())
+	}
+
+	b := resp.GetBooking()
+	if iE := utils.ValidateBooking(b, &mpb.Booking{
+		Slot:               req.GetSlot(),
+		UserInformation:    req.GetUserInformation(),
+		PaymentInformation: req.GetPaymentInformation(),
+	}); iE != nil {
+		return nil, fmt.Errorf("invalid response. CreateBooking invalid: %s", iE.Error())
+	}
+	return b, nil
+}
+
+// ListBookings calls the maps booking ListBookings rpc and compares the return with all input bookings.
+func ListBookings(ctx context.Context, tB Bookings, c mpb.BookingServiceClient) (Bookings, error) {
+	var out Bookings
+	req := &mpb.ListBookingsRequest{
+		UserId: userID,
+	}
+	log.Printf("ListBookings Request. Sent(unix): %s, Request %s", time.Now().UTC().Format(time.RFC850), req.String())
+	resp, err := c.ListBookings(ctx, req)
+	if err != nil {
+		return out, fmt.Errorf("invalid response. ListBookings yielded error: %v. Abandoning all booking from this flow", err)
+	}
+
+	log.Printf("ListBookings Response. Received(unix): %s, Response %s", time.Now().UTC().Format(time.RFC850), resp.String())
+	gB := Bookings(resp.GetBookings())
+	if len(gB) != len(tB) {
+		return out, fmt.Errorf("number of bookings differ, ListBookings invalid. Got: %d, Want: %d. Abandoning all bookings from this flow", len(gB), len(tB))
+	}
+
+	sort.Sort(gB)
+	sort.Sort(tB)
+	for i := 0; i < len(tB); i++ {
+		if iE := utils.ValidateBooking(gB[i], tB[i]); iE != nil {
+			log.Printf("ListBookings invalid, %s, abandoning slot %d/%d", iE.Error(), i, len(tB))
+			continue
+		}
+		out = append(out, tB[i])
+	}
+
+	return out, nil
+}
+
+// GetBookingStatus checks that all input bookings are in an acceptable state.
+func GetBookingStatus(ctx context.Context, b *mpb.Booking, c mpb.BookingServiceClient) error {
+	req := &mpb.GetBookingStatusRequest{
+		BookingId: b.GetBookingId(),
+	}
+
+	log.Printf("GetBookingStatus Request. Sent(unix): %s, Request %s", time.Now().UTC().Format(time.RFC850), req.String())
+	resp, err := c.GetBookingStatus(ctx, req)
+	if err != nil {
+		return fmt.Errorf("invalid response. GetBookingStatus yielded error: %v", err)
+	}
+
+	log.Printf("GetBookingStatus Response. Received(unix): %s, Response %s", time.Now().UTC().Format(time.RFC850), resp.String())
+	if diff := cmp.Diff(resp.GetBookingStatus(), mpb.BookingStatus_CONFIRMED); diff != "" {
+		return fmt.Errorf("invalid response. BookingStatus differ (-got +want)\n%s", diff)
+	}
+
+	return nil
+}
+
+// CancelBooking is a clean up method that cancels all supplied bookings.
+func CancelBooking(ctx context.Context, b *mpb.Booking, c mpb.BookingServiceClient) error {
+	b.Status = mpb.BookingStatus_CANCELED
+	req := &mpb.UpdateBookingRequest{
+		UpdateMask: &field_mask.FieldMask{
+			Paths: []string{"status"},
+		},
+		Booking: b,
+	}
+
+	log.Printf("UpdateBooking Request. Sent(unix): %s, Request %s", time.Now().UTC().Format(time.RFC850), req.String())
+	resp, err := c.UpdateBooking(ctx, req)
+	if err != nil {
+		return fmt.Errorf("invalid response. UpdateBooking yielded error: %v", err)
+	}
+
+	log.Printf("UpdateBooking Response. Received(unix): %s, Response %s", time.Now().UTC().Format(time.RFC850), resp.String())
+	if iE := utils.ValidateBooking(resp.GetBooking(), req.GetBooking()); iE != nil {
+		return fmt.Errorf("invalid response. UpdateBooking: %s", iE.Error())
+	}
+	return nil
+}
+
+// Rescheduling will attempt to create a booking, update the booking, then cancel.
+func Rescheduling(ctx context.Context, av []*fpb.Availability, c mpb.BookingServiceClient) error {
+	var slots []*fpb.Availability
+	for _, v := range utils.BuildMerchantServiceMap(av) {
+		// Need at least two slots for reschedule.
+		if len(v) <= 1 {
+			continue
+		}
+		slots = v
+		break
+	}
+
+	if len(slots) == 0 {
+		return errors.New("no suitable availability for rescheduling flow. exiting")
+	}
+	// Book first slot.
+	newBooking, err := CreateBooking(ctx, slots[0], c)
+	if err != nil {
+		return fmt.Errorf("could not complete booking, abandoning rescheduling flow: %v", err)
+	}
+
+	slot := newBooking.GetSlot()
+	// New slot.
+	lastAvailability := slots[len(slots)-1]
+	startTime, err := ptypes.TimestampProto(time.Unix(lastAvailability.GetStartSec(), 0))
+	if err != nil {
+		return fmt.Errorf("could not complete update, abandoning rescheduling flow: %v", err)
+	}
+	slot.StartTime = startTime
+	slot.Duration = ptypes.DurationProto(time.Duration(lastAvailability.GetDurationSec()) * time.Second)
+
+	req := &mpb.UpdateBookingRequest{
+		UpdateMask: &field_mask.FieldMask{
+			Paths: []string{"slot.start_time", "slot.duration"},
+		},
+		Booking: newBooking,
+	}
+
+	log.Printf("UpdateBooking Request. Sent(unix): %s, Request %s", time.Now().UTC().Format(time.RFC850), req.String())
+	resp, err := c.UpdateBooking(ctx, req)
+	if err != nil {
+		return fmt.Errorf("invalid response. UpdateBooking yielded error: %v", err)
+	}
+
+	log.Printf("UpdateBooking Response. Received(unix): %s, Response %s", time.Now().UTC().Format(time.RFC850), resp.String())
+	if iE := utils.ValidateBooking(resp.GetBooking(), newBooking); iE != nil {
+		return fmt.Errorf("invalid response. UpdateBooking: %s, abandoning slot 1/1", iE.Error())
+	}
+	return CancelBooking(ctx, resp.GetBooking(), c)
+}
diff --git a/bookingservice/booking_service.pb.go b/bookingservice/booking_service.pb.go
new file mode 100644
index 0000000..92b93d4
--- /dev/null
+++ b/bookingservice/booking_service.pb.go
@@ -0,0 +1,1940 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: booking_service.proto
+
+/*
+Package ext_maps_booking_partner_v2 is a generated protocol buffer package.
+
+It is generated from these files:
+	booking_service.proto
+
+It has these top-level messages:
+	Slot
+	Lease
+	LeaseReference
+	Booking
+	UserInformation
+	PostalAddress
+	PaymentProcessingParameters
+	Price
+	UserPaymentOption
+	PaymentInformation
+	BookingFailure
+	Resources
+	CheckAvailabilityRequest
+	CheckAvailabilityResponse
+	CreateLeaseRequest
+	CreateLeaseResponse
+	CreateBookingRequest
+	CreateBookingResponse
+	UpdateBookingRequest
+	UpdateBookingResponse
+	GetBookingStatusRequest
+	GetBookingStatusResponse
+	ListBookingsRequest
+	ListBookingsResponse
+*/
+package ext_maps_booking_partner_v2
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+import google_protobuf "github.com/golang/protobuf/ptypes/duration"
+import google_protobuf1 "google.golang.org/genproto/protobuf/field_mask"
+import google_protobuf2 "github.com/golang/protobuf/ptypes/timestamp"
+
+import (
+	context "golang.org/x/net/context"
+	grpc "google.golang.org/grpc"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type PaymentOptionType int32
+
+const (
+	PaymentOptionType_PAYMENT_OPTION_TYPE_UNSPECIFIED PaymentOptionType = 0
+	PaymentOptionType_PAYMENT_OPTION_SINGLE_USE       PaymentOptionType = 1
+	PaymentOptionType_PAYMENT_OPTION_MULTI_USE        PaymentOptionType = 2
+	PaymentOptionType_PAYMENT_OPTION_UNLIMITED_USE    PaymentOptionType = 3
+)
+
+var PaymentOptionType_name = map[int32]string{
+	0: "PAYMENT_OPTION_TYPE_UNSPECIFIED",
+	1: "PAYMENT_OPTION_SINGLE_USE",
+	2: "PAYMENT_OPTION_MULTI_USE",
+	3: "PAYMENT_OPTION_UNLIMITED_USE",
+}
+var PaymentOptionType_value = map[string]int32{
+	"PAYMENT_OPTION_TYPE_UNSPECIFIED": 0,
+	"PAYMENT_OPTION_SINGLE_USE":       1,
+	"PAYMENT_OPTION_MULTI_USE":        2,
+	"PAYMENT_OPTION_UNLIMITED_USE":    3,
+}
+
+func (x PaymentOptionType) String() string {
+	return proto.EnumName(PaymentOptionType_name, int32(x))
+}
+func (PaymentOptionType) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+// Status of a booking.
+//
+// Updating booking status does not change the status of the associated payment.
+// Prepayment status updates should be done using the PrepaymentStatus enum.
+//
+// nextID: 6
+type BookingStatus int32
+
+const (
+	// Not specified.
+	BookingStatus_BOOKING_STATUS_UNSPECIFIED BookingStatus = 0
+	// Booking has been confirmed
+	BookingStatus_CONFIRMED BookingStatus = 1
+	// Booking is awaiting confirmation by the merchant before it can transition
+	// into CONFIRMED status
+	BookingStatus_PENDING_MERCHANT_CONFIRMATION BookingStatus = 2
+	// Booking has been canceled on behalf of the user.
+	// The merchant can still trigger a manual refund.
+	BookingStatus_CANCELED BookingStatus = 3
+	// User did not show for the appointment
+	BookingStatus_NO_SHOW BookingStatus = 4
+	// User did not show for the appointment in violation of the cancellation
+	// policy.
+	BookingStatus_NO_SHOW_PENALIZED BookingStatus = 5
+)
+
+var BookingStatus_name = map[int32]string{
+	0: "BOOKING_STATUS_UNSPECIFIED",
+	1: "CONFIRMED",
+	2: "PENDING_MERCHANT_CONFIRMATION",
+	3: "CANCELED",
+	4: "NO_SHOW",
+	5: "NO_SHOW_PENALIZED",
+}
+var BookingStatus_value = map[string]int32{
+	"BOOKING_STATUS_UNSPECIFIED":    0,
+	"CONFIRMED":                     1,
+	"PENDING_MERCHANT_CONFIRMATION": 2,
+	"CANCELED":                      3,
+	"NO_SHOW":                       4,
+	"NO_SHOW_PENALIZED":             5,
+}
+
+func (x BookingStatus) String() string {
+	return proto.EnumName(BookingStatus_name, int32(x))
+}
+func (BookingStatus) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+// Prepayment status of a booking.
+// Updating payment status will trigger an update on the payment status of the
+// associated booking (if applicable).
+// Currently, the only supported transition is from PREPAYMENT_PROVIDED to
+// PREPAYMENT_REFUNDED, which will initiate a non-reversible refund on the
+// associated payment transaction.
+type PrepaymentStatus int32
+
+const (
+	// Not specified, defaults to PREPAYMENT_NOT_PROVIDED.
+	PrepaymentStatus_PREPAYMENT_STATUS_UNSPECIFIED PrepaymentStatus = 0
+	// The fee for the booking has been paid in advance.
+	PrepaymentStatus_PREPAYMENT_PROVIDED PrepaymentStatus = 1
+	// The fee for the booking has not been paid in advance.
+	PrepaymentStatus_PREPAYMENT_NOT_PROVIDED PrepaymentStatus = 2
+	// The fee was previously PREPAYMENT_PROVIDED but has now been refunded.
+	PrepaymentStatus_PREPAYMENT_REFUNDED PrepaymentStatus = 3
+	// The fee was previously PREPAYMENT_PROVIDED but now has been credited
+	// (user given a UserPaymentOption as a voucher for the booking).
+	// If this is set, the response should also include the updated
+	// UserPaymentOption.
+	PrepaymentStatus_PREPAYMENT_CREDITED PrepaymentStatus = 4
+)
+
+var PrepaymentStatus_name = map[int32]string{
+	0: "PREPAYMENT_STATUS_UNSPECIFIED",
+	1: "PREPAYMENT_PROVIDED",
+	2: "PREPAYMENT_NOT_PROVIDED",
+	3: "PREPAYMENT_REFUNDED",
+	4: "PREPAYMENT_CREDITED",
+}
+var PrepaymentStatus_value = map[string]int32{
+	"PREPAYMENT_STATUS_UNSPECIFIED": 0,
+	"PREPAYMENT_PROVIDED":           1,
+	"PREPAYMENT_NOT_PROVIDED":       2,
+	"PREPAYMENT_REFUNDED":           3,
+	"PREPAYMENT_CREDITED":           4,
+}
+
+func (x PrepaymentStatus) String() string {
+	return proto.EnumName(PrepaymentStatus_name, int32(x))
+}
+func (PrepaymentStatus) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
+
+type PaymentProcessingParameters_PaymentProcessor int32
+
+const (
+	PaymentProcessingParameters_PAYMENT_PROCESSOR_UNSPECIFIED PaymentProcessingParameters_PaymentProcessor = 0
+	PaymentProcessingParameters_PROCESSOR_STRIPE              PaymentProcessingParameters_PaymentProcessor = 1
+	PaymentProcessingParameters_PROCESSOR_BRAINTREE           PaymentProcessingParameters_PaymentProcessor = 2
+)
+
+var PaymentProcessingParameters_PaymentProcessor_name = map[int32]string{
+	0: "PAYMENT_PROCESSOR_UNSPECIFIED",
+	1: "PROCESSOR_STRIPE",
+	2: "PROCESSOR_BRAINTREE",
+}
+var PaymentProcessingParameters_PaymentProcessor_value = map[string]int32{
+	"PAYMENT_PROCESSOR_UNSPECIFIED": 0,
+	"PROCESSOR_STRIPE":              1,
+	"PROCESSOR_BRAINTREE":           2,
+}
+
+func (x PaymentProcessingParameters_PaymentProcessor) String() string {
+	return proto.EnumName(PaymentProcessingParameters_PaymentProcessor_name, int32(x))
+}
+func (PaymentProcessingParameters_PaymentProcessor) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor0, []int{6, 0}
+}
+
+// Who handles payment processing?
+// If payment is processed by the partner, CreateBooking request will
+// include additional parameters (PaymentProcessingParameters) indicating
+// the payment method to be used to process the payment.
+type PaymentInformation_PaymentProcessedBy int32
+
+const (
+	PaymentInformation_PAYMENT_PROCESSED_BY_UNSPECIFIED PaymentInformation_PaymentProcessedBy = 0
+	PaymentInformation_PROCESSED_BY_GOOGLE              PaymentInformation_PaymentProcessedBy = 1
+	PaymentInformation_PROCESSED_BY_PARTNER             PaymentInformation_PaymentProcessedBy = 2
+)
+
+var PaymentInformation_PaymentProcessedBy_name = map[int32]string{
+	0: "PAYMENT_PROCESSED_BY_UNSPECIFIED",
+	1: "PROCESSED_BY_GOOGLE",
+	2: "PROCESSED_BY_PARTNER",
+}
+var PaymentInformation_PaymentProcessedBy_value = map[string]int32{
+	"PAYMENT_PROCESSED_BY_UNSPECIFIED": 0,
+	"PROCESSED_BY_GOOGLE":              1,
+	"PROCESSED_BY_PARTNER":             2,
+}
+
+func (x PaymentInformation_PaymentProcessedBy) String() string {
+	return proto.EnumName(PaymentInformation_PaymentProcessedBy_name, int32(x))
+}
+func (PaymentInformation_PaymentProcessedBy) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor0, []int{9, 0}
+}
+
+type BookingFailure_Cause int32
+
+const (
+	// Default value: Don't use; amounts to an "unknown error"
+	BookingFailure_CAUSE_UNSPECIFIED BookingFailure_Cause = 0
+	// The referenced availability slot is not available any longer.
+	BookingFailure_SLOT_UNAVAILABLE BookingFailure_Cause = 1
+	// The user has already booked an appointment for the referenced
+	// availability slot.
+	BookingFailure_SLOT_ALREADY_BOOKED_BY_USER BookingFailure_Cause = 2
+	// The lease (if provided) has expired and cannot be used any longer to
+	// complete the requested booking.
+	BookingFailure_LEASE_EXPIRED BookingFailure_Cause = 3
+	// The requested cancellation cannot be performed at the current time due
+	// to time restrictions in the merchant's cancellation policy.
+	BookingFailure_OUTSIDE_CANCELLATION_WINDOW BookingFailure_Cause = 4
+	// An error was encountered while processing the payment because the
+	// provided credit card type was not accepted by the merchant. The credit
+	// card type must be supplied in rejected_card_type.
+	BookingFailure_PAYMENT_ERROR_CARD_TYPE_REJECTED BookingFailure_Cause = 5
+	// An error was encountered while processing the payment because the
+	// provided credit card was declined.
+	BookingFailure_PAYMENT_ERROR_CARD_DECLINED BookingFailure_Cause = 6
+	// An error was encountered with the pack/membership used to pay for the
+	// booking. There could be no valid uses left, it could have expired, etc.
+	BookingFailure_PAYMENT_OPTION_NOT_VALID BookingFailure_Cause = 7
+	// An error was encountered while processing the payment for this booking.
+	// Use this value to indicate a general payment related error, only if the
+	// error does not match to a specific payment error above.
+	BookingFailure_PAYMENT_ERROR BookingFailure_Cause = 8
+	// User cannot use the given payment option (e.g. user trying to use a
+	// first time price for the second time).
+	BookingFailure_USER_CANNOT_USE_PAYMENT_OPTION BookingFailure_Cause = 9
+	// A booking that the user tried to cancel has already been cancelled.
+	BookingFailure_BOOKING_ALREADY_CANCELLED BookingFailure_Cause = 10
+	// A booking that the user tried to cancel is not cancellable.
+	BookingFailure_BOOKING_NOT_CANCELLABLE BookingFailure_Cause = 11
+)
+
+var BookingFailure_Cause_name = map[int32]string{
+	0:  "CAUSE_UNSPECIFIED",
+	1:  "SLOT_UNAVAILABLE",
+	2:  "SLOT_ALREADY_BOOKED_BY_USER",
+	3:  "LEASE_EXPIRED",
+	4:  "OUTSIDE_CANCELLATION_WINDOW",
+	5:  "PAYMENT_ERROR_CARD_TYPE_REJECTED",
+	6:  "PAYMENT_ERROR_CARD_DECLINED",
+	7:  "PAYMENT_OPTION_NOT_VALID",
+	8:  "PAYMENT_ERROR",
+	9:  "USER_CANNOT_USE_PAYMENT_OPTION",
+	10: "BOOKING_ALREADY_CANCELLED",
+	11: "BOOKING_NOT_CANCELLABLE",
+}
+var BookingFailure_Cause_value = map[string]int32{
+	"CAUSE_UNSPECIFIED":                0,
+	"SLOT_UNAVAILABLE":                 1,
+	"SLOT_ALREADY_BOOKED_BY_USER":      2,
+	"LEASE_EXPIRED":                    3,
+	"OUTSIDE_CANCELLATION_WINDOW":      4,
+	"PAYMENT_ERROR_CARD_TYPE_REJECTED": 5,
+	"PAYMENT_ERROR_CARD_DECLINED":      6,
+	"PAYMENT_OPTION_NOT_VALID":         7,
+	"PAYMENT_ERROR":                    8,
+	"USER_CANNOT_USE_PAYMENT_OPTION":   9,
+	"BOOKING_ALREADY_CANCELLED":        10,
+	"BOOKING_NOT_CANCELLABLE":          11,
+}
+
+func (x BookingFailure_Cause) String() string {
+	return proto.EnumName(BookingFailure_Cause_name, int32(x))
+}
+func (BookingFailure_Cause) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{10, 0} }
+
+// Set if cause is PAYMENT_ERROR_CARD_TYPE_REJECTED to indicate the type of
+// credit card that was rejected.
+type BookingFailure_CreditCardType int32
+
+const (
+	// Default value. Used if credit card type does not match to one below.
+	BookingFailure_CREDIT_CARD_TYPE_UNSPECIFIED BookingFailure_CreditCardType = 0
+	BookingFailure_VISA                         BookingFailure_CreditCardType = 1
+	BookingFailure_MASTERCARD                   BookingFailure_CreditCardType = 2
+	BookingFailure_AMERICAN_EXPRESS             BookingFailure_CreditCardType = 3
+	BookingFailure_DISCOVER                     BookingFailure_CreditCardType = 4
+)
+
+var BookingFailure_CreditCardType_name = map[int32]string{
+	0: "CREDIT_CARD_TYPE_UNSPECIFIED",
+	1: "VISA",
+	2: "MASTERCARD",
+	3: "AMERICAN_EXPRESS",
+	4: "DISCOVER",
+}
+var BookingFailure_CreditCardType_value = map[string]int32{
+	"CREDIT_CARD_TYPE_UNSPECIFIED": 0,
+	"VISA":             1,
+	"MASTERCARD":       2,
+	"AMERICAN_EXPRESS": 3,
+	"DISCOVER":         4,
+}
+
+func (x BookingFailure_CreditCardType) String() string {
+	return proto.EnumName(BookingFailure_CreditCardType_name, int32(x))
+}
+func (BookingFailure_CreditCardType) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor0, []int{10, 1}
+}
+
+// This enum indicates what requirements exist for the user to acknowledge or
+// view the requested slots duration/end time.
+type CheckAvailabilityResponse_DurationRequirement int32
+
+const (
+	// The handling of the end time is not specified. This is the default.
+	CheckAvailabilityResponse_DURATION_REQUIREMENT_UNSPECIFIED CheckAvailabilityResponse_DurationRequirement = 0
+	// The end time is not shown to the user.
+	CheckAvailabilityResponse_DO_NOT_SHOW_DURATION CheckAvailabilityResponse_DurationRequirement = 1
+	// The end time has to be shown to the user before an appointment can be
+	// made.
+	CheckAvailabilityResponse_MUST_SHOW_DURATION CheckAvailabilityResponse_DurationRequirement = 2
+)
+
+var CheckAvailabilityResponse_DurationRequirement_name = map[int32]string{
+	0: "DURATION_REQUIREMENT_UNSPECIFIED",
+	1: "DO_NOT_SHOW_DURATION",
+	2: "MUST_SHOW_DURATION",
+}
+var CheckAvailabilityResponse_DurationRequirement_value = map[string]int32{
+	"DURATION_REQUIREMENT_UNSPECIFIED": 0,
+	"DO_NOT_SHOW_DURATION":             1,
+	"MUST_SHOW_DURATION":               2,
+}
+
+func (x CheckAvailabilityResponse_DurationRequirement) String() string {
+	return proto.EnumName(CheckAvailabilityResponse_DurationRequirement_name, int32(x))
+}
+func (CheckAvailabilityResponse_DurationRequirement) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor0, []int{13, 0}
+}
+
+// An inventory slot
+type Slot struct {
+	// ID of the merchant for the slot
+	MerchantId string `protobuf:"bytes,1,opt,name=merchant_id,json=merchantId" json:"merchant_id,omitempty"`
+	// ID of the merchant service
+	ServiceId string `protobuf:"bytes,2,opt,name=service_id,json=serviceId" json:"service_id,omitempty"`
+	// Start time of the appointment slot
+	StartTime *google_protobuf2.Timestamp `protobuf:"bytes,3,opt,name=start_time,json=startTime" json:"start_time,omitempty"`
+	// Duration of the appointment slot
+	Duration *google_protobuf.Duration `protobuf:"bytes,4,opt,name=duration" json:"duration,omitempty"`
+	// Opaque tag that identifies the availability slot and matches the value
+	// provided in the availability feed
+	AvailabilityTag string `protobuf:"bytes,5,opt,name=availability_tag,json=availabilityTag" json:"availability_tag,omitempty"`
+	// The set of resources that disambiguates the appointment slot, e.g. by
+	// indicating the staff member and room selected by the user
+	Resources *Resources `protobuf:"bytes,6,opt,name=resources" json:"resources,omitempty"`
+}
+
+func (m *Slot) Reset()                    { *m = Slot{} }
+func (m *Slot) String() string            { return proto.CompactTextString(m) }
+func (*Slot) ProtoMessage()               {}
+func (*Slot) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *Slot) GetMerchantId() string {
+	if m != nil {
+		return m.MerchantId
+	}
+	return ""
+}
+
+func (m *Slot) GetServiceId() string {
+	if m != nil {
+		return m.ServiceId
+	}
+	return ""
+}
+
+func (m *Slot) GetStartTime() *google_protobuf2.Timestamp {
+	if m != nil {
+		return m.StartTime
+	}
+	return nil
+}
+
+func (m *Slot) GetDuration() *google_protobuf.Duration {
+	if m != nil {
+		return m.Duration
+	}
+	return nil
+}
+
+func (m *Slot) GetAvailabilityTag() string {
+	if m != nil {
+		return m.AvailabilityTag
+	}
+	return ""
+}
+
+func (m *Slot) GetResources() *Resources {
+	if m != nil {
+		return m.Resources
+	}
+	return nil
+}
+
+// Temporary lease for an inventory slot
+type Lease struct {
+	// ID of the lease.
+	// Not populated in CreateLeaseRequest. The value is chosen by the partner and
+	// has to be returned in the response of CreateLease.
+	LeaseId string `protobuf:"bytes,1,opt,name=lease_id,json=leaseId" json:"lease_id,omitempty"`
+	// The appointment slot that the lease is created for.
+	Slot *Slot `protobuf:"bytes,2,opt,name=slot" json:"slot,omitempty"`
+	// Unique identifier for this lease, chosen by Reserve with Google. Serves as
+	// an idempotency token for [ext.maps.booking.partner.v2.CreateLease]
+	// requests.
+	UserReference string `protobuf:"bytes,3,opt,name=user_reference,json=userReference" json:"user_reference,omitempty"`
+	// Expiration time of the lease
+	LeaseExpirationTime *google_protobuf2.Timestamp `protobuf:"bytes,4,opt,name=lease_expiration_time,json=leaseExpirationTime" json:"lease_expiration_time,omitempty"`
+}
+
+func (m *Lease) Reset()                    { *m = Lease{} }
+func (m *Lease) String() string            { return proto.CompactTextString(m) }
+func (*Lease) ProtoMessage()               {}
+func (*Lease) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *Lease) GetLeaseId() string {
+	if m != nil {
+		return m.LeaseId
+	}
+	return ""
+}
+
+func (m *Lease) GetSlot() *Slot {
+	if m != nil {
+		return m.Slot
+	}
+	return nil
+}
+
+func (m *Lease) GetUserReference() string {
+	if m != nil {
+		return m.UserReference
+	}
+	return ""
+}
+
+func (m *Lease) GetLeaseExpirationTime() *google_protobuf2.Timestamp {
+	if m != nil {
+		return m.LeaseExpirationTime
+	}
+	return nil
+}
+
+// Reference to a [ext.maps.booking.partner.v2.Lease] that has been created via
+// [ext.maps.booking.partner.v2.CreateLease]
+type LeaseReference struct {
+	// Lease ID
+	LeaseId string `protobuf:"bytes,1,opt,name=lease_id,json=leaseId" json:"lease_id,omitempty"`
+}
+
+func (m *LeaseReference) Reset()                    { *m = LeaseReference{} }
+func (m *LeaseReference) String() string            { return proto.CompactTextString(m) }
+func (*LeaseReference) ProtoMessage()               {}
+func (*LeaseReference) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
+
+func (m *LeaseReference) GetLeaseId() string {
+	if m != nil {
+		return m.LeaseId
+	}
+	return ""
+}
+
+// A booking for an inventory slot
+type Booking struct {
+	// ID of this booking
+	BookingId string `protobuf:"bytes,1,opt,name=booking_id,json=bookingId" json:"booking_id,omitempty"`
+	// The appointment slot of this booking
+	Slot *Slot `protobuf:"bytes,2,opt,name=slot" json:"slot,omitempty"`
+	// Personal information of the user making the appointment
+	UserInformation *UserInformation `protobuf:"bytes,3,opt,name=user_information,json=userInformation" json:"user_information,omitempty"`
+	// Status of the booking
+	Status BookingStatus `protobuf:"varint,4,opt,name=status,enum=ext.maps.booking.partner.v2.BookingStatus" json:"status,omitempty"`
+	// Information about payment transactions that relate to the booking.
+	PaymentInformation *PaymentInformation `protobuf:"bytes,5,opt,name=payment_information,json=paymentInformation" json:"payment_information,omitempty"`
+}
+
+func (m *Booking) Reset()                    { *m = Booking{} }
+func (m *Booking) String() string            { return proto.CompactTextString(m) }
+func (*Booking) ProtoMessage()               {}
+func (*Booking) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
+
+func (m *Booking) GetBookingId() string {
+	if m != nil {
+		return m.BookingId
+	}
+	return ""
+}
+
+func (m *Booking) GetSlot() *Slot {
+	if m != nil {
+		return m.Slot
+	}
+	return nil
+}
+
+func (m *Booking) GetUserInformation() *UserInformation {
+	if m != nil {
+		return m.UserInformation
+	}
+	return nil
+}
+
+func (m *Booking) GetStatus() BookingStatus {
+	if m != nil {
+		return m.Status
+	}
+	return BookingStatus_BOOKING_STATUS_UNSPECIFIED
+}
+
+func (m *Booking) GetPaymentInformation() *PaymentInformation {
+	if m != nil {
+		return m.PaymentInformation
+	}
+	return nil
+}
+
+// Personal information about the person making a booking
+type UserInformation struct {
+	// Unique ID of the user to the partner, chosen by Reserve with Google.
+	UserId string `protobuf:"bytes,1,opt,name=user_id,json=userId" json:"user_id,omitempty"`
+	// Given name of the user
+	GivenName string `protobuf:"bytes,2,opt,name=given_name,json=givenName" json:"given_name,omitempty"`
+	// Family name of the user
+	FamilyName string `protobuf:"bytes,3,opt,name=family_name,json=familyName" json:"family_name,omitempty"`
+	// Address of the user (optional)
+	Address *PostalAddress `protobuf:"bytes,4,opt,name=address" json:"address,omitempty"`
+	// Phone number of the user (optional)
+	Telephone string `protobuf:"bytes,5,opt,name=telephone" json:"telephone,omitempty"`
+	// Email address of the user
+	Email string `protobuf:"bytes,6,opt,name=email" json:"email,omitempty"`
+}
+
+func (m *UserInformation) Reset()                    { *m = UserInformation{} }
+func (m *UserInformation) String() string            { return proto.CompactTextString(m) }
+func (*UserInformation) ProtoMessage()               {}
+func (*UserInformation) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} }
+
+func (m *UserInformation) GetUserId() string {
+	if m != nil {
+		return m.UserId
+	}
+	return ""
+}
+
+func (m *UserInformation) GetGivenName() string {
+	if m != nil {
+		return m.GivenName
+	}
+	return ""
+}
+
+func (m *UserInformation) GetFamilyName() string {
+	if m != nil {
+		return m.FamilyName
+	}
+	return ""
+}
+
+func (m *UserInformation) GetAddress() *PostalAddress {
+	if m != nil {
+		return m.Address
+	}
+	return nil
+}
+
+func (m *UserInformation) GetTelephone() string {
+	if m != nil {
+		return m.Telephone
+	}
+	return ""
+}
+
+func (m *UserInformation) GetEmail() string {
+	if m != nil {
+		return m.Email
+	}
+	return ""
+}
+
+// Postal address for a user
+type PostalAddress struct {
+	// The country, e.g. "USA".
+	AddressCountry string `protobuf:"bytes,1,opt,name=address_country,json=addressCountry" json:"address_country,omitempty"`
+	// The locality, e.g. "Mountain View".
+	AddressLocality string `protobuf:"bytes,2,opt,name=address_locality,json=addressLocality" json:"address_locality,omitempty"`
+	// The region, e.g. "CA".
+	AddressRegion string `protobuf:"bytes,3,opt,name=address_region,json=addressRegion" json:"address_region,omitempty"`
+	// The post office box number, e.g. "3112", optional.
+	PostOfficeBoxNumber string `protobuf:"bytes,4,opt,name=post_office_box_number,json=postOfficeBoxNumber" json:"post_office_box_number,omitempty"`
+	// The postal code, e.g. "94043".
+	PostalCode string `protobuf:"bytes,5,opt,name=postal_code,json=postalCode" json:"postal_code,omitempty"`
+	// The street address, e.g. "1600 Amphitheatre Pkwy".
+	StreetAddress string `protobuf:"bytes,6,opt,name=street_address,json=streetAddress" json:"street_address,omitempty"`
+}
+
+func (m *PostalAddress) Reset()                    { *m = PostalAddress{} }
+func (m *PostalAddress) String() string            { return proto.CompactTextString(m) }
+func (*PostalAddress) ProtoMessage()               {}
+func (*PostalAddress) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{5} }
+
+func (m *PostalAddress) GetAddressCountry() string {
+	if m != nil {
+		return m.AddressCountry
+	}
+	return ""
+}
+
+func (m *PostalAddress) GetAddressLocality() string {
+	if m != nil {
+		return m.AddressLocality
+	}
+	return ""
+}
+
+func (m *PostalAddress) GetAddressRegion() string {
+	if m != nil {
+		return m.AddressRegion
+	}
+	return ""
+}
+
+func (m *PostalAddress) GetPostOfficeBoxNumber() string {
+	if m != nil {
+		return m.PostOfficeBoxNumber
+	}
+	return ""
+}
+
+func (m *PostalAddress) GetPostalCode() string {
+	if m != nil {
+		return m.PostalCode
+	}
+	return ""
+}
+
+func (m *PostalAddress) GetStreetAddress() string {
+	if m != nil {
+		return m.StreetAddress
+	}
+	return ""
+}
+
+// Parameters to specify how the partner will process payment for a given
+// booking.
+//
+// A sample request:
+//   processor: PROCESSOR_STRIPE
+//   payment_method_token: "pk_live_12345abcdef"
+//   version: "2017-06-15"
+type PaymentProcessingParameters struct {
+	Processor PaymentProcessingParameters_PaymentProcessor `protobuf:"varint,1,opt,name=processor,enum=ext.maps.booking.partner.v2.PaymentProcessingParameters_PaymentProcessor" json:"processor,omitempty"`
+	// The token representing the payment method that will be used to pay
+	// for this booking. This token can be only used once. This token can be
+	// only used for the merchant associated with this booking.
+	//
+	// Each processor may choose its own format for this field.
+	// Stripe uses "pk_live_1234abc..." for live keys and "pk_test_1234abc..."
+	// for test keys.
+	PaymentMethodToken string `protobuf:"bytes,2,opt,name=payment_method_token,json=paymentMethodToken" json:"payment_method_token,omitempty"`
+	// The payment processor API version that the given payment token is valid
+	// for.
+	//
+	// Each processor may choose its own format for this field.
+	// Stripe uses a date (e.g. "2017-06-15").
+	Version string `protobuf:"bytes,3,opt,name=version" json:"version,omitempty"`
+}
+
+func (m *PaymentProcessingParameters) Reset()                    { *m = PaymentProcessingParameters{} }
+func (m *PaymentProcessingParameters) String() string            { return proto.CompactTextString(m) }
+func (*PaymentProcessingParameters) ProtoMessage()               {}
+func (*PaymentProcessingParameters) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{6} }
+
+func (m *PaymentProcessingParameters) GetProcessor() PaymentProcessingParameters_PaymentProcessor {
+	if m != nil {
+		return m.Processor
+	}
+	return PaymentProcessingParameters_PAYMENT_PROCESSOR_UNSPECIFIED
+}
+
+func (m *PaymentProcessingParameters) GetPaymentMethodToken() string {
+	if m != nil {
+		return m.PaymentMethodToken
+	}
+	return ""
+}
+
+func (m *PaymentProcessingParameters) GetVersion() string {
+	if m != nil {
+		return m.Version
+	}
+	return ""
+}
+
+type Price struct {
+	// The price in micro-units of the currency.
+	// Fractions of smallest currency unit will be rounded using nearest even
+	// rounding. (e.g. For USD 2.5 cents rounded to 2 cents, 3.5 cents rounded to
+	// 4 cents, 0.5 cents rounded to 0 cents, 2.51 cents rounded to 3 cents).
+	PriceMicros int64 `protobuf:"varint,1,opt,name=price_micros,json=priceMicros" json:"price_micros,omitempty"`
+	// The currency of the price that is defined in ISO 4217.
+	CurrencyCode string `protobuf:"bytes,2,opt,name=currency_code,json=currencyCode" json:"currency_code,omitempty"`
+}
+
+func (m *Price) Reset()                    { *m = Price{} }
+func (m *Price) String() string            { return proto.CompactTextString(m) }
+func (*Price) ProtoMessage()               {}
+func (*Price) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{7} }
+
+func (m *Price) GetPriceMicros() int64 {
+	if m != nil {
+		return m.PriceMicros
+	}
+	return 0
+}
+
+func (m *Price) GetCurrencyCode() string {
+	if m != nil {
+		return m.CurrencyCode
+	}
+	return ""
+}
+
+// This describes a payment option, such as a pack, membership, or
+// single-session pass after it has been purchased by a user. It includes an
+// identifier for the user payment option, as well as some information about
+// the payment option with which it is associated.
+type UserPaymentOption struct {
+	// A unique identifier for the user payment option. This Id MUST be unique
+	// for all UserPaymentOptions across all merchants and users.
+	UserPaymentOptionId string `protobuf:"bytes,1,opt,name=user_payment_option_id,json=userPaymentOptionId" json:"user_payment_option_id,omitempty"`
+	// The user payment option will be valid (usable) between start_time and
+	// end_time. Attempts to use a user payment option to make a booking outside
+	// of this interval  will fail.
+	ValidStartTime *google_protobuf2.Timestamp `protobuf:"bytes,2,opt,name=valid_start_time,json=validStartTime" json:"valid_start_time,omitempty"`
+	ValidEndTime   *google_protobuf2.Timestamp `protobuf:"bytes,3,opt,name=valid_end_time,json=validEndTime" json:"valid_end_time,omitempty"`
+	// The type of the payment option associated with this user payment option.
+	// This can be unlimited for a membership or subscription, multi-use for a
+	// pack, or single-use.
+	Type PaymentOptionType `protobuf:"varint,4,opt,name=type,enum=ext.maps.booking.partner.v2.PaymentOptionType" json:"type,omitempty"`
+	// The original number of uses for this user payment option when it was
+	// purchased. This value is ignored for unlimited payment options.
+	OriginalCount int32 `protobuf:"varint,5,opt,name=original_count,json=originalCount" json:"original_count,omitempty"`
+	// The number of uses remaining for this user payment option. If this number
+	// is 0 for a pack, attempts to use this payment option to make a booking will
+	// fail.
+	CurrentCount int32 `protobuf:"varint,6,opt,name=current_count,json=currentCount" json:"current_count,omitempty"`
+	// The id of the payment option that has been used to purchase this user
+	// payment option.
+	PaymentOptionId string `protobuf:"bytes,7,opt,name=payment_option_id,json=paymentOptionId" json:"payment_option_id,omitempty"`
+}
+
+func (m *UserPaymentOption) Reset()                    { *m = UserPaymentOption{} }
+func (m *UserPaymentOption) String() string            { return proto.CompactTextString(m) }
+func (*UserPaymentOption) ProtoMessage()               {}
+func (*UserPaymentOption) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{8} }
+
+func (m *UserPaymentOption) GetUserPaymentOptionId() string {
+	if m != nil {
+		return m.UserPaymentOptionId
+	}
+	return ""
+}
+
+func (m *UserPaymentOption) GetValidStartTime() *google_protobuf2.Timestamp {
+	if m != nil {
+		return m.ValidStartTime
+	}
+	return nil
+}
+
+func (m *UserPaymentOption) GetValidEndTime() *google_protobuf2.Timestamp {
+	if m != nil {
+		return m.ValidEndTime
+	}
+	return nil
+}
+
+func (m *UserPaymentOption) GetType() PaymentOptionType {
+	if m != nil {
+		return m.Type
+	}
+	return PaymentOptionType_PAYMENT_OPTION_TYPE_UNSPECIFIED
+}
+
+func (m *UserPaymentOption) GetOriginalCount() int32 {
+	if m != nil {
+		return m.OriginalCount
+	}
+	return 0
+}
+
+func (m *UserPaymentOption) GetCurrentCount() int32 {
+	if m != nil {
+		return m.CurrentCount
+	}
+	return 0
+}
+
+func (m *UserPaymentOption) GetPaymentOptionId() string {
+	if m != nil {
+		return m.PaymentOptionId
+	}
+	return ""
+}
+
+// Payment details that are sent when creating a new booking.
+type PaymentInformation struct {
+	// Prepayment status of the booking.
+	// If the prepayment_status is PREPAYMENT_PROVIDED, then
+	// payment_transaction_id contains the associated unique transaction id for
+	// the purchase.
+	// If the prepayment status is PREPAYMENT_REFUNDED, then
+	// payment_transaction_id contains the associated unique transaction id for
+	// the refund.
+	PrepaymentStatus PrepaymentStatus `protobuf:"varint,1,opt,name=prepayment_status,json=prepaymentStatus,enum=ext.maps.booking.partner.v2.PrepaymentStatus" json:"prepayment_status,omitempty"`
+	// Unique identifier for a payment transaction associated with the booking.
+	// Empty if not applicable.
+	PaymentTransactionId string `protobuf:"bytes,2,opt,name=payment_transaction_id,json=paymentTransactionId" json:"payment_transaction_id,omitempty"`
+	// These fields must match the service price (specified in the Services feed)
+	// or the PaymentOption corresponding with this service.
+	// They are included in the booking request and response to verify that
+	// the price indicated in the feed has not changed since the last feed
+	// update.
+	//
+	// The price of the booking, exclusive of any taxes.
+	// Existence of price or taxes does not imply that they have been paid,
+	// prepayment_state should be used for that purpose.
+	Price *Price `protobuf:"bytes,3,opt,name=price" json:"price,omitempty"`
+	// Taxes that are calculated to be paid for this booking.
+	// If this field is absent the price is assumed to be exempt from or already
+	// inclusive of applicable taxes.
+	TaxAmount          *Price                                `protobuf:"bytes,4,opt,name=tax_amount,json=taxAmount" json:"tax_amount,omitempty"`
+	PaymentProcessedBy PaymentInformation_PaymentProcessedBy `protobuf:"varint,5,opt,name=payment_processed_by,json=paymentProcessedBy,enum=ext.maps.booking.partner.v2.PaymentInformation_PaymentProcessedBy" json:"payment_processed_by,omitempty"`
+	// The id of the payment option or user payment option associated with the
+	// booking.
+	// If a payment option is purchased as part of a booking, payment_option_id
+	// will be set with the id of that payment option.
+	// If an already purchased user payment option is being used to pay for a
+	// booking, user_payment_option_id will be set with the id of that user
+	// payment option.
+	// When included as part of a response proto, the user_payment_option_id
+	// should be set and must match the UserPaymentOption that is returned in the
+	// RPC response (e.g. the user_payment_option returned in
+	// CreateBookingResponse).
+	//
+	// Types that are valid to be assigned to PaymentId:
+	//	*PaymentInformation_PaymentOptionId
+	//	*PaymentInformation_UserPaymentOptionId
+	PaymentId isPaymentInformation_PaymentId `protobuf_oneof:"payment_id"`
+}
+
+func (m *PaymentInformation) Reset()                    { *m = PaymentInformation{} }
+func (m *PaymentInformation) String() string            { return proto.CompactTextString(m) }
+func (*PaymentInformation) ProtoMessage()               {}
+func (*PaymentInformation) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{9} }
+
+type isPaymentInformation_PaymentId interface {
+	isPaymentInformation_PaymentId()
+}
+
+type PaymentInformation_PaymentOptionId struct {
+	PaymentOptionId string `protobuf:"bytes,6,opt,name=payment_option_id,json=paymentOptionId,oneof"`
+}
+type PaymentInformation_UserPaymentOptionId struct {
+	UserPaymentOptionId string `protobuf:"bytes,7,opt,name=user_payment_option_id,json=userPaymentOptionId,oneof"`
+}
+
+func (*PaymentInformation_PaymentOptionId) isPaymentInformation_PaymentId()     {}
+func (*PaymentInformation_UserPaymentOptionId) isPaymentInformation_PaymentId() {}
+
+func (m *PaymentInformation) GetPaymentId() isPaymentInformation_PaymentId {
+	if m != nil {
+		return m.PaymentId
+	}
+	return nil
+}
+
+func (m *PaymentInformation) GetPrepaymentStatus() PrepaymentStatus {
+	if m != nil {
+		return m.PrepaymentStatus
+	}
+	return PrepaymentStatus_PREPAYMENT_STATUS_UNSPECIFIED
+}
+
+func (m *PaymentInformation) GetPaymentTransactionId() string {
+	if m != nil {
+		return m.PaymentTransactionId
+	}
+	return ""
+}
+
+func (m *PaymentInformation) GetPrice() *Price {
+	if m != nil {
+		return m.Price
+	}
+	return nil
+}
+
+func (m *PaymentInformation) GetTaxAmount() *Price {
+	if m != nil {
+		return m.TaxAmount
+	}
+	return nil
+}
+
+func (m *PaymentInformation) GetPaymentProcessedBy() PaymentInformation_PaymentProcessedBy {
+	if m != nil {
+		return m.PaymentProcessedBy
+	}
+	return PaymentInformation_PAYMENT_PROCESSED_BY_UNSPECIFIED
+}
+
+func (m *PaymentInformation) GetPaymentOptionId() string {
+	if x, ok := m.GetPaymentId().(*PaymentInformation_PaymentOptionId); ok {
+		return x.PaymentOptionId
+	}
+	return ""
+}
+
+func (m *PaymentInformation) GetUserPaymentOptionId() string {
+	if x, ok := m.GetPaymentId().(*PaymentInformation_UserPaymentOptionId); ok {
+		return x.UserPaymentOptionId
+	}
+	return ""
+}
+
+// XXX_OneofFuncs is for the internal use of the proto package.
+func (*PaymentInformation) XXX_OneofFuncs() (func(msg proto.Message, b *proto.Buffer) error, func(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error), func(msg proto.Message) (n int), []interface{}) {
+	return _PaymentInformation_OneofMarshaler, _PaymentInformation_OneofUnmarshaler, _PaymentInformation_OneofSizer, []interface{}{
+		(*PaymentInformation_PaymentOptionId)(nil),
+		(*PaymentInformation_UserPaymentOptionId)(nil),
+	}
+}
+
+func _PaymentInformation_OneofMarshaler(msg proto.Message, b *proto.Buffer) error {
+	m := msg.(*PaymentInformation)
+	// payment_id
+	switch x := m.PaymentId.(type) {
+	case *PaymentInformation_PaymentOptionId:
+		b.EncodeVarint(6<<3 | proto.WireBytes)
+		b.EncodeStringBytes(x.PaymentOptionId)
+	case *PaymentInformation_UserPaymentOptionId:
+		b.EncodeVarint(7<<3 | proto.WireBytes)
+		b.EncodeStringBytes(x.UserPaymentOptionId)
+	case nil:
+	default:
+		return fmt.Errorf("PaymentInformation.PaymentId has unexpected type %T", x)
+	}
+	return nil
+}
+
+func _PaymentInformation_OneofUnmarshaler(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error) {
+	m := msg.(*PaymentInformation)
+	switch tag {
+	case 6: // payment_id.payment_option_id
+		if wire != proto.WireBytes {
+			return true, proto.ErrInternalBadWireType
+		}
+		x, err := b.DecodeStringBytes()
+		m.PaymentId = &PaymentInformation_PaymentOptionId{x}
+		return true, err
+	case 7: // payment_id.user_payment_option_id
+		if wire != proto.WireBytes {
+			return true, proto.ErrInternalBadWireType
+		}
+		x, err := b.DecodeStringBytes()
+		m.PaymentId = &PaymentInformation_UserPaymentOptionId{x}
+		return true, err
+	default:
+		return false, nil
+	}
+}
+
+func _PaymentInformation_OneofSizer(msg proto.Message) (n int) {
+	m := msg.(*PaymentInformation)
+	// payment_id
+	switch x := m.PaymentId.(type) {
+	case *PaymentInformation_PaymentOptionId:
+		n += proto.SizeVarint(6<<3 | proto.WireBytes)
+		n += proto.SizeVarint(uint64(len(x.PaymentOptionId)))
+		n += len(x.PaymentOptionId)
+	case *PaymentInformation_UserPaymentOptionId:
+		n += proto.SizeVarint(7<<3 | proto.WireBytes)
+		n += proto.SizeVarint(uint64(len(x.UserPaymentOptionId)))
+		n += len(x.UserPaymentOptionId)
+	case nil:
+	default:
+		panic(fmt.Sprintf("proto: unexpected type %T in oneof", x))
+	}
+	return n
+}
+
+// Status data that conveys why (1) creating a lease or (2) creating or updating
+// a booking fails.
+// BookingFailure is intended to primarily capture business logic errors.
+type BookingFailure struct {
+	Cause            BookingFailure_Cause          `protobuf:"varint,1,opt,name=cause,enum=ext.maps.booking.partner.v2.BookingFailure_Cause" json:"cause,omitempty"`
+	RejectedCardType BookingFailure_CreditCardType `protobuf:"varint,2,opt,name=rejected_card_type,json=rejectedCardType,enum=ext.maps.booking.partner.v2.BookingFailure_CreditCardType" json:"rejected_card_type,omitempty"`
+	// This optional field is used for the partner to include additional
+	// information for debugging purpose only.
+	Description string `protobuf:"bytes,3,opt,name=description" json:"description,omitempty"`
+}
+
+func (m *BookingFailure) Reset()                    { *m = BookingFailure{} }
+func (m *BookingFailure) String() string            { return proto.CompactTextString(m) }
+func (*BookingFailure) ProtoMessage()               {}
+func (*BookingFailure) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{10} }
+
+func (m *BookingFailure) GetCause() BookingFailure_Cause {
+	if m != nil {
+		return m.Cause
+	}
+	return BookingFailure_CAUSE_UNSPECIFIED
+}
+
+func (m *BookingFailure) GetRejectedCardType() BookingFailure_CreditCardType {
+	if m != nil {
+		return m.RejectedCardType
+	}
+	return BookingFailure_CREDIT_CARD_TYPE_UNSPECIFIED
+}
+
+func (m *BookingFailure) GetDescription() string {
+	if m != nil {
+		return m.Description
+	}
+	return ""
+}
+
+// Resource specification that disambiguates an appointment slot
+type Resources struct {
+	// The staff ID as provided in the feed or empty if not applicable or no staff
+	// was selected.
+	StaffId string `protobuf:"bytes,1,opt,name=staff_id,json=staffId" json:"staff_id,omitempty"`
+	// The room ID as provided in the feed or empty if not applicable or no room
+	// was selected.
+	RoomId string `protobuf:"bytes,2,opt,name=room_id,json=roomId" json:"room_id,omitempty"`
+	// For Dining Reservations only: the number of seats requested in the booking.
+	PartySize int32 `protobuf:"varint,3,opt,name=party_size,json=partySize" json:"party_size,omitempty"`
+}
+
+func (m *Resources) Reset()                    { *m = Resources{} }
+func (m *Resources) String() string            { return proto.CompactTextString(m) }
+func (*Resources) ProtoMessage()               {}
+func (*Resources) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{11} }
+
+func (m *Resources) GetStaffId() string {
+	if m != nil {
+		return m.StaffId
+	}
+	return ""
+}
+
+func (m *Resources) GetRoomId() string {
+	if m != nil {
+		return m.RoomId
+	}
+	return ""
+}
+
+func (m *Resources) GetPartySize() int32 {
+	if m != nil {
+		return m.PartySize
+	}
+	return 0
+}
+
+// Request to check availability for a [ext.maps.booking.partner.v2.Slot]
+type CheckAvailabilityRequest struct {
+	// The appointment slot that is being checked
+	Slot *Slot `protobuf:"bytes,1,opt,name=slot" json:"slot,omitempty"`
+}
+
+func (m *CheckAvailabilityRequest) Reset()                    { *m = CheckAvailabilityRequest{} }
+func (m *CheckAvailabilityRequest) String() string            { return proto.CompactTextString(m) }
+func (*CheckAvailabilityRequest) ProtoMessage()               {}
+func (*CheckAvailabilityRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{12} }
+
+func (m *CheckAvailabilityRequest) GetSlot() *Slot {
+	if m != nil {
+		return m.Slot
+	}
+	return nil
+}
+
+// Response for the [ext.maps.booking.partner.v2.CheckAvailability] RPC with the
+// availability of the appointment slot
+type CheckAvailabilityResponse struct {
+	// The requested slot.
+	Slot *Slot `protobuf:"bytes,1,opt,name=slot" json:"slot,omitempty"`
+	// Number of available spots.
+	// 0 indicates that the appointment slot is not available.
+	CountAvailable int32 `protobuf:"varint,2,opt,name=count_available,json=countAvailable" json:"count_available,omitempty"`
+	// Optionally, return the requirement to show the slots duration and/or
+	// endtime. This field will be ignored if slot is unavailable.
+	DurationRequirement CheckAvailabilityResponse_DurationRequirement `protobuf:"varint,3,opt,name=duration_requirement,json=durationRequirement,enum=ext.maps.booking.partner.v2.CheckAvailabilityResponse_DurationRequirement" json:"duration_requirement,omitempty"`
+}
+
+func (m *CheckAvailabilityResponse) Reset()                    { *m = CheckAvailabilityResponse{} }
+func (m *CheckAvailabilityResponse) String() string            { return proto.CompactTextString(m) }
+func (*CheckAvailabilityResponse) ProtoMessage()               {}
+func (*CheckAvailabilityResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{13} }
+
+func (m *CheckAvailabilityResponse) GetSlot() *Slot {
+	if m != nil {
+		return m.Slot
+	}
+	return nil
+}
+
+func (m *CheckAvailabilityResponse) GetCountAvailable() int32 {
+	if m != nil {
+		return m.CountAvailable
+	}
+	return 0
+}
+
+func (m *CheckAvailabilityResponse) GetDurationRequirement() CheckAvailabilityResponse_DurationRequirement {
+	if m != nil {
+		return m.DurationRequirement
+	}
+	return CheckAvailabilityResponse_DURATION_REQUIREMENT_UNSPECIFIED
+}
+
+// Request to create a [ext.maps.booking.partner.v2.Lease] for a slot in the
+// inventory.  The expiration time in the returned Lease may be modified by the
+// backend, e.g. if the requested lease period is too long.
+type CreateLeaseRequest struct {
+	// The lease to be created with information about the appointment slot
+	Lease *Lease `protobuf:"bytes,1,opt,name=lease" json:"lease,omitempty"`
+}
+
+func (m *CreateLeaseRequest) Reset()                    { *m = CreateLeaseRequest{} }
+func (m *CreateLeaseRequest) String() string            { return proto.CompactTextString(m) }
+func (*CreateLeaseRequest) ProtoMessage()               {}
+func (*CreateLeaseRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{14} }
+
+func (m *CreateLeaseRequest) GetLease() *Lease {
+	if m != nil {
+		return m.Lease
+	}
+	return nil
+}
+
+// Response for the [ext.maps.booking.partner.v2.CreateLease] RPC with the
+// created [ext.maps.booking.partner.v2.Lease]
+type CreateLeaseResponse struct {
+	// The created [ext.maps.booking.partner.v2.Lease]
+	Lease *Lease `protobuf:"bytes,1,opt,name=lease" json:"lease,omitempty"`
+	// If creating a lease fails, this field should reflect the business logic
+	// error (e.g., slot has become unavailable) and lease field is expected to be
+	// unset.
+	BookingFailure *BookingFailure `protobuf:"bytes,2,opt,name=booking_failure,json=bookingFailure" json:"booking_failure,omitempty"`
+}
+
+func (m *CreateLeaseResponse) Reset()                    { *m = CreateLeaseResponse{} }
+func (m *CreateLeaseResponse) String() string            { return proto.CompactTextString(m) }
+func (*CreateLeaseResponse) ProtoMessage()               {}
+func (*CreateLeaseResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{15} }
+
+func (m *CreateLeaseResponse) GetLease() *Lease {
+	if m != nil {
+		return m.Lease
+	}
+	return nil
+}
+
+func (m *CreateLeaseResponse) GetBookingFailure() *BookingFailure {
+	if m != nil {
+		return m.BookingFailure
+	}
+	return nil
+}
+
+// Request to create a [ext.maps.booking.partner.v2.Booking] for an inventory
+// slot. Consumes the lease if provided.
+type CreateBookingRequest struct {
+	// The inventory slot that is being requested to make this booking.
+	// If lease_ref is provided, slot must match the lease; slot is provided for
+	// the partner to verify the lease information.
+	// If lease_ref is absent, then create the booking for the slot.
+	Slot *Slot `protobuf:"bytes,1,opt,name=slot" json:"slot,omitempty"`
+	// The lease that is being confirmed to make this booking.
+	// If lease_ref is provided, then create the booking using the lease.
+	LeaseRef *LeaseReference `protobuf:"bytes,2,opt,name=lease_ref,json=leaseRef" json:"lease_ref,omitempty"`
+	// Personal information of the user making the appointment
+	UserInformation *UserInformation `protobuf:"bytes,3,opt,name=user_information,json=userInformation" json:"user_information,omitempty"`
+	// Information about payments. When payment authorizations are handled by
+	// Google, if the booking request does not succeed, payment authorizations are
+	// automatically canceled.
+	PaymentInformation *PaymentInformation `protobuf:"bytes,4,opt,name=payment_information,json=paymentInformation" json:"payment_information,omitempty"`
+	// The parameters to be used if the payment is processed by the partner
+	// (i.e. payment_information.payment_processed_by is equal to
+	// PROCESSED_BY_PARTNER).
+	PaymentProcessingParameters *PaymentProcessingParameters `protobuf:"bytes,5,opt,name=payment_processing_parameters,json=paymentProcessingParameters" json:"payment_processing_parameters,omitempty"`
+	// Idempotency token for [ext.maps.booking.partner.v2.CreateBooking] requests.
+	IdempotencyToken string `protobuf:"bytes,6,opt,name=idempotency_token,json=idempotencyToken" json:"idempotency_token,omitempty"`
+}
+
+func (m *CreateBookingRequest) Reset()                    { *m = CreateBookingRequest{} }
+func (m *CreateBookingRequest) String() string            { return proto.CompactTextString(m) }
+func (*CreateBookingRequest) ProtoMessage()               {}
+func (*CreateBookingRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{16} }
+
+func (m *CreateBookingRequest) GetSlot() *Slot {
+	if m != nil {
+		return m.Slot
+	}
+	return nil
+}
+
+func (m *CreateBookingRequest) GetLeaseRef() *LeaseReference {
+	if m != nil {
+		return m.LeaseRef
+	}
+	return nil
+}
+
+func (m *CreateBookingRequest) GetUserInformation() *UserInformation {
+	if m != nil {
+		return m.UserInformation
+	}
+	return nil
+}
+
+func (m *CreateBookingRequest) GetPaymentInformation() *PaymentInformation {
+	if m != nil {
+		return m.PaymentInformation
+	}
+	return nil
+}
+
+func (m *CreateBookingRequest) GetPaymentProcessingParameters() *PaymentProcessingParameters {
+	if m != nil {
+		return m.PaymentProcessingParameters
+	}
+	return nil
+}
+
+func (m *CreateBookingRequest) GetIdempotencyToken() string {
+	if m != nil {
+		return m.IdempotencyToken
+	}
+	return ""
+}
+
+// Response with the created [ext.maps.booking.partner.v2.Booking] for an
+// inventory slot
+type CreateBookingResponse struct {
+	// The created booking
+	Booking *Booking `protobuf:"bytes,1,opt,name=booking" json:"booking,omitempty"`
+	// The updated user payment option used in this booking.
+	// If a new payment option was purchased to pay for the booking, this should
+	// be a newly created user payment option.
+	// If an already purchased user payment option was used for this booking,
+	// this should reflect an updated version of that user payment option.
+	UserPaymentOption *UserPaymentOption `protobuf:"bytes,2,opt,name=user_payment_option,json=userPaymentOption" json:"user_payment_option,omitempty"`
+	// If creating a booking fails, this field should reflect the business logic
+	// error (e.g., slot has become unavailable) and all other fields in the
+	// CreateBookingResponse message are expected to be unset.
+	BookingFailure *BookingFailure `protobuf:"bytes,3,opt,name=booking_failure,json=bookingFailure" json:"booking_failure,omitempty"`
+}
+
+func (m *CreateBookingResponse) Reset()                    { *m = CreateBookingResponse{} }
+func (m *CreateBookingResponse) String() string            { return proto.CompactTextString(m) }
+func (*CreateBookingResponse) ProtoMessage()               {}
+func (*CreateBookingResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{17} }
+
+func (m *CreateBookingResponse) GetBooking() *Booking {
+	if m != nil {
+		return m.Booking
+	}
+	return nil
+}
+
+func (m *CreateBookingResponse) GetUserPaymentOption() *UserPaymentOption {
+	if m != nil {
+		return m.UserPaymentOption
+	}
+	return nil
+}
+
+func (m *CreateBookingResponse) GetBookingFailure() *BookingFailure {
+	if m != nil {
+		return m.BookingFailure
+	}
+	return nil
+}
+
+// Request to update a [ext.maps.booking.partner.v2.Booking]
+type UpdateBookingRequest struct {
+	// Field mask of all booking fields to be updated
+	UpdateMask *google_protobuf1.FieldMask `protobuf:"bytes,1,opt,name=update_mask,json=updateMask" json:"update_mask,omitempty"`
+	// The booking to be updated
+	// The following fields can be set in a booking:
+	// - status, to cancel a booking.
+	// - start_time and duration in the slot, to reschedule a booking.
+	Booking *Booking `protobuf:"bytes,2,opt,name=booking" json:"booking,omitempty"`
+}
+
+func (m *UpdateBookingRequest) Reset()                    { *m = UpdateBookingRequest{} }
+func (m *UpdateBookingRequest) String() string            { return proto.CompactTextString(m) }
+func (*UpdateBookingRequest) ProtoMessage()               {}
+func (*UpdateBookingRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{18} }
+
+func (m *UpdateBookingRequest) GetUpdateMask() *google_protobuf1.FieldMask {
+	if m != nil {
+		return m.UpdateMask
+	}
+	return nil
+}
+
+func (m *UpdateBookingRequest) GetBooking() *Booking {
+	if m != nil {
+		return m.Booking
+	}
+	return nil
+}
+
+// Response with the updated [ext.maps.booking.partner.v2.Booking]
+type UpdateBookingResponse struct {
+	// The updated booking
+	Booking *Booking `protobuf:"bytes,1,opt,name=booking" json:"booking,omitempty"`
+	// The updated user payment option originally used to pay for this booking.
+	// This should be set if the UpdateBookingRequest results in a change to
+	// the UserPaymentOption.
+	// For instance, if the booking is canceled, the UserPaymentOption should
+	// reflect an additional credit to the user. In the case of a multi-use
+	// payment option, the current_count should be increased by one to
+	// allow the user to create another booking with this payment option. In the
+	// case of a single-use payment option, a new single-use user payment option
+	// should be returned.
+	UserPaymentOption *UserPaymentOption `protobuf:"bytes,2,opt,name=user_payment_option,json=userPaymentOption" json:"user_payment_option,omitempty"`
+	// If updating a booking fails, this field should reflect the business logic
+	// error (e.g., booking is not cancellable)
+	BookingFailure *BookingFailure `protobuf:"bytes,3,opt,name=booking_failure,json=bookingFailure" json:"booking_failure,omitempty"`
+}
+
+func (m *UpdateBookingResponse) Reset()                    { *m = UpdateBookingResponse{} }
+func (m *UpdateBookingResponse) String() string            { return proto.CompactTextString(m) }
+func (*UpdateBookingResponse) ProtoMessage()               {}
+func (*UpdateBookingResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{19} }
+
+func (m *UpdateBookingResponse) GetBooking() *Booking {
+	if m != nil {
+		return m.Booking
+	}
+	return nil
+}
+
+func (m *UpdateBookingResponse) GetUserPaymentOption() *UserPaymentOption {
+	if m != nil {
+		return m.UserPaymentOption
+	}
+	return nil
+}
+
+func (m *UpdateBookingResponse) GetBookingFailure() *BookingFailure {
+	if m != nil {
+		return m.BookingFailure
+	}
+	return nil
+}
+
+// Request to get booking status and prepayment status for a
+// [ext.maps.booking.partner.v2.Booking]
+type GetBookingStatusRequest struct {
+	// ID of the existing booking
+	BookingId string `protobuf:"bytes,1,opt,name=booking_id,json=bookingId" json:"booking_id,omitempty"`
+}
+
+func (m *GetBookingStatusRequest) Reset()                    { *m = GetBookingStatusRequest{} }
+func (m *GetBookingStatusRequest) String() string            { return proto.CompactTextString(m) }
+func (*GetBookingStatusRequest) ProtoMessage()               {}
+func (*GetBookingStatusRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{20} }
+
+func (m *GetBookingStatusRequest) GetBookingId() string {
+	if m != nil {
+		return m.BookingId
+	}
+	return ""
+}
+
+// Response for the [ext.maps.booking.partner.v2.GetBookingStatus] RPC with
+// booking status and prepayment status
+type GetBookingStatusResponse struct {
+	// ID of the booking
+	BookingId string `protobuf:"bytes,1,opt,name=booking_id,json=bookingId" json:"booking_id,omitempty"`
+	// Status of the booking
+	BookingStatus BookingStatus `protobuf:"varint,2,opt,name=booking_status,json=bookingStatus,enum=ext.maps.booking.partner.v2.BookingStatus" json:"booking_status,omitempty"`
+	// Prepayment status of the booking
+	PrepaymentStatus PrepaymentStatus `protobuf:"varint,3,opt,name=prepayment_status,json=prepaymentStatus,enum=ext.maps.booking.partner.v2.PrepaymentStatus" json:"prepayment_status,omitempty"`
+}
+
+func (m *GetBookingStatusResponse) Reset()                    { *m = GetBookingStatusResponse{} }
+func (m *GetBookingStatusResponse) String() string            { return proto.CompactTextString(m) }
+func (*GetBookingStatusResponse) ProtoMessage()               {}
+func (*GetBookingStatusResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{21} }
+
+func (m *GetBookingStatusResponse) GetBookingId() string {
+	if m != nil {
+		return m.BookingId
+	}
+	return ""
+}
+
+func (m *GetBookingStatusResponse) GetBookingStatus() BookingStatus {
+	if m != nil {
+		return m.BookingStatus
+	}
+	return BookingStatus_BOOKING_STATUS_UNSPECIFIED
+}
+
+func (m *GetBookingStatusResponse) GetPrepaymentStatus() PrepaymentStatus {
+	if m != nil {
+		return m.PrepaymentStatus
+	}
+	return PrepaymentStatus_PREPAYMENT_STATUS_UNSPECIFIED
+}
+
+// Request to list all bookings for a user
+type ListBookingsRequest struct {
+	// ID of the user
+	UserId string `protobuf:"bytes,1,opt,name=user_id,json=userId" json:"user_id,omitempty"`
+}
+
+func (m *ListBookingsRequest) Reset()                    { *m = ListBookingsRequest{} }
+func (m *ListBookingsRequest) String() string            { return proto.CompactTextString(m) }
+func (*ListBookingsRequest) ProtoMessage()               {}
+func (*ListBookingsRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{22} }
+
+func (m *ListBookingsRequest) GetUserId() string {
+	if m != nil {
+		return m.UserId
+	}
+	return ""
+}
+
+// Response for the [ext.maps.booking.partner.v2.ListBookings] RPC with all
+// bookings for the requested user
+type ListBookingsResponse struct {
+	// All bookings of the user
+	Bookings []*Booking `protobuf:"bytes,1,rep,name=bookings" json:"bookings,omitempty"`
+}
+
+func (m *ListBookingsResponse) Reset()                    { *m = ListBookingsResponse{} }
+func (m *ListBookingsResponse) String() string            { return proto.CompactTextString(m) }
+func (*ListBookingsResponse) ProtoMessage()               {}
+func (*ListBookingsResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{23} }
+
+func (m *ListBookingsResponse) GetBookings() []*Booking {
+	if m != nil {
+		return m.Bookings
+	}
+	return nil
+}
+
+func init() {
+	proto.RegisterType((*Slot)(nil), "ext.maps.booking.partner.v2.Slot")
+	proto.RegisterType((*Lease)(nil), "ext.maps.booking.partner.v2.Lease")
+	proto.RegisterType((*LeaseReference)(nil), "ext.maps.booking.partner.v2.LeaseReference")
+	proto.RegisterType((*Booking)(nil), "ext.maps.booking.partner.v2.Booking")
+	proto.RegisterType((*UserInformation)(nil), "ext.maps.booking.partner.v2.UserInformation")
+	proto.RegisterType((*PostalAddress)(nil), "ext.maps.booking.partner.v2.PostalAddress")
+	proto.RegisterType((*PaymentProcessingParameters)(nil), "ext.maps.booking.partner.v2.PaymentProcessingParameters")
+	proto.RegisterType((*Price)(nil), "ext.maps.booking.partner.v2.Price")
+	proto.RegisterType((*UserPaymentOption)(nil), "ext.maps.booking.partner.v2.UserPaymentOption")
+	proto.RegisterType((*PaymentInformation)(nil), "ext.maps.booking.partner.v2.PaymentInformation")
+	proto.RegisterType((*BookingFailure)(nil), "ext.maps.booking.partner.v2.BookingFailure")
+	proto.RegisterType((*Resources)(nil), "ext.maps.booking.partner.v2.Resources")
+	proto.RegisterType((*CheckAvailabilityRequest)(nil), "ext.maps.booking.partner.v2.CheckAvailabilityRequest")
+	proto.RegisterType((*CheckAvailabilityResponse)(nil), "ext.maps.booking.partner.v2.CheckAvailabilityResponse")
+	proto.RegisterType((*CreateLeaseRequest)(nil), "ext.maps.booking.partner.v2.CreateLeaseRequest")
+	proto.RegisterType((*CreateLeaseResponse)(nil), "ext.maps.booking.partner.v2.CreateLeaseResponse")
+	proto.RegisterType((*CreateBookingRequest)(nil), "ext.maps.booking.partner.v2.CreateBookingRequest")
+	proto.RegisterType((*CreateBookingResponse)(nil), "ext.maps.booking.partner.v2.CreateBookingResponse")
+	proto.RegisterType((*UpdateBookingRequest)(nil), "ext.maps.booking.partner.v2.UpdateBookingRequest")
+	proto.RegisterType((*UpdateBookingResponse)(nil), "ext.maps.booking.partner.v2.UpdateBookingResponse")
+	proto.RegisterType((*GetBookingStatusRequest)(nil), "ext.maps.booking.partner.v2.GetBookingStatusRequest")
+	proto.RegisterType((*GetBookingStatusResponse)(nil), "ext.maps.booking.partner.v2.GetBookingStatusResponse")
+	proto.RegisterType((*ListBookingsRequest)(nil), "ext.maps.booking.partner.v2.ListBookingsRequest")
+	proto.RegisterType((*ListBookingsResponse)(nil), "ext.maps.booking.partner.v2.ListBookingsResponse")
+	proto.RegisterEnum("ext.maps.booking.partner.v2.PaymentOptionType", PaymentOptionType_name, PaymentOptionType_value)
+	proto.RegisterEnum("ext.maps.booking.partner.v2.BookingStatus", BookingStatus_name, BookingStatus_value)
+	proto.RegisterEnum("ext.maps.booking.partner.v2.PrepaymentStatus", PrepaymentStatus_name, PrepaymentStatus_value)
+	proto.RegisterEnum("ext.maps.booking.partner.v2.PaymentProcessingParameters_PaymentProcessor", PaymentProcessingParameters_PaymentProcessor_name, PaymentProcessingParameters_PaymentProcessor_value)
+	proto.RegisterEnum("ext.maps.booking.partner.v2.PaymentInformation_PaymentProcessedBy", PaymentInformation_PaymentProcessedBy_name, PaymentInformation_PaymentProcessedBy_value)
+	proto.RegisterEnum("ext.maps.booking.partner.v2.BookingFailure_Cause", BookingFailure_Cause_name, BookingFailure_Cause_value)
+	proto.RegisterEnum("ext.maps.booking.partner.v2.BookingFailure_CreditCardType", BookingFailure_CreditCardType_name, BookingFailure_CreditCardType_value)
+	proto.RegisterEnum("ext.maps.booking.partner.v2.CheckAvailabilityResponse_DurationRequirement", CheckAvailabilityResponse_DurationRequirement_name, CheckAvailabilityResponse_DurationRequirement_value)
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConn
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+const _ = grpc.SupportPackageIsVersion4
+
+// Client API for BookingService service
+
+type BookingServiceClient interface {
+	// Gets availability information for an appointment slot
+	CheckAvailability(ctx context.Context, in *CheckAvailabilityRequest, opts ...grpc.CallOption) (*CheckAvailabilityResponse, error)
+	// Creates a new lease
+	CreateLease(ctx context.Context, in *CreateLeaseRequest, opts ...grpc.CallOption) (*CreateLeaseResponse, error)
+	// Creates a booking
+	CreateBooking(ctx context.Context, in *CreateBookingRequest, opts ...grpc.CallOption) (*CreateBookingResponse, error)
+	// Updates an existing booking
+	UpdateBooking(ctx context.Context, in *UpdateBookingRequest, opts ...grpc.CallOption) (*UpdateBookingResponse, error)
+	// Gets status for an existing booking
+	GetBookingStatus(ctx context.Context, in *GetBookingStatusRequest, opts ...grpc.CallOption) (*GetBookingStatusResponse, error)
+	// Lists all bookings for a user
+	ListBookings(ctx context.Context, in *ListBookingsRequest, opts ...grpc.CallOption) (*ListBookingsResponse, error)
+}
+
+type bookingServiceClient struct {
+	cc *grpc.ClientConn
+}
+
+func NewBookingServiceClient(cc *grpc.ClientConn) BookingServiceClient {
+	return &bookingServiceClient{cc}
+}
+
+func (c *bookingServiceClient) CheckAvailability(ctx context.Context, in *CheckAvailabilityRequest, opts ...grpc.CallOption) (*CheckAvailabilityResponse, error) {
+	out := new(CheckAvailabilityResponse)
+	err := grpc.Invoke(ctx, "/ext.maps.booking.partner.v2.BookingService/CheckAvailability", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *bookingServiceClient) CreateLease(ctx context.Context, in *CreateLeaseRequest, opts ...grpc.CallOption) (*CreateLeaseResponse, error) {
+	out := new(CreateLeaseResponse)
+	err := grpc.Invoke(ctx, "/ext.maps.booking.partner.v2.BookingService/CreateLease", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *bookingServiceClient) CreateBooking(ctx context.Context, in *CreateBookingRequest, opts ...grpc.CallOption) (*CreateBookingResponse, error) {
+	out := new(CreateBookingResponse)
+	err := grpc.Invoke(ctx, "/ext.maps.booking.partner.v2.BookingService/CreateBooking", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *bookingServiceClient) UpdateBooking(ctx context.Context, in *UpdateBookingRequest, opts ...grpc.CallOption) (*UpdateBookingResponse, error) {
+	out := new(UpdateBookingResponse)
+	err := grpc.Invoke(ctx, "/ext.maps.booking.partner.v2.BookingService/UpdateBooking", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *bookingServiceClient) GetBookingStatus(ctx context.Context, in *GetBookingStatusRequest, opts ...grpc.CallOption) (*GetBookingStatusResponse, error) {
+	out := new(GetBookingStatusResponse)
+	err := grpc.Invoke(ctx, "/ext.maps.booking.partner.v2.BookingService/GetBookingStatus", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *bookingServiceClient) ListBookings(ctx context.Context, in *ListBookingsRequest, opts ...grpc.CallOption) (*ListBookingsResponse, error) {
+	out := new(ListBookingsResponse)
+	err := grpc.Invoke(ctx, "/ext.maps.booking.partner.v2.BookingService/ListBookings", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// Server API for BookingService service
+
+type BookingServiceServer interface {
+	// Gets availability information for an appointment slot
+	CheckAvailability(context.Context, *CheckAvailabilityRequest) (*CheckAvailabilityResponse, error)
+	// Creates a new lease
+	CreateLease(context.Context, *CreateLeaseRequest) (*CreateLeaseResponse, error)
+	// Creates a booking
+	CreateBooking(context.Context, *CreateBookingRequest) (*CreateBookingResponse, error)
+	// Updates an existing booking
+	UpdateBooking(context.Context, *UpdateBookingRequest) (*UpdateBookingResponse, error)
+	// Gets status for an existing booking
+	GetBookingStatus(context.Context, *GetBookingStatusRequest) (*GetBookingStatusResponse, error)
+	// Lists all bookings for a user
+	ListBookings(context.Context, *ListBookingsRequest) (*ListBookingsResponse, error)
+}
+
+func RegisterBookingServiceServer(s *grpc.Server, srv BookingServiceServer) {
+	s.RegisterService(&_BookingService_serviceDesc, srv)
+}
+
+func _BookingService_CheckAvailability_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CheckAvailabilityRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(BookingServiceServer).CheckAvailability(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/ext.maps.booking.partner.v2.BookingService/CheckAvailability",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(BookingServiceServer).CheckAvailability(ctx, req.(*CheckAvailabilityRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _BookingService_CreateLease_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CreateLeaseRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(BookingServiceServer).CreateLease(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/ext.maps.booking.partner.v2.BookingService/CreateLease",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(BookingServiceServer).CreateLease(ctx, req.(*CreateLeaseRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _BookingService_CreateBooking_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CreateBookingRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(BookingServiceServer).CreateBooking(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/ext.maps.booking.partner.v2.BookingService/CreateBooking",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(BookingServiceServer).CreateBooking(ctx, req.(*CreateBookingRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _BookingService_UpdateBooking_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(UpdateBookingRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(BookingServiceServer).UpdateBooking(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/ext.maps.booking.partner.v2.BookingService/UpdateBooking",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(BookingServiceServer).UpdateBooking(ctx, req.(*UpdateBookingRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _BookingService_GetBookingStatus_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetBookingStatusRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(BookingServiceServer).GetBookingStatus(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/ext.maps.booking.partner.v2.BookingService/GetBookingStatus",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(BookingServiceServer).GetBookingStatus(ctx, req.(*GetBookingStatusRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _BookingService_ListBookings_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ListBookingsRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(BookingServiceServer).ListBookings(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/ext.maps.booking.partner.v2.BookingService/ListBookings",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(BookingServiceServer).ListBookings(ctx, req.(*ListBookingsRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+var _BookingService_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "ext.maps.booking.partner.v2.BookingService",
+	HandlerType: (*BookingServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "CheckAvailability",
+			Handler:    _BookingService_CheckAvailability_Handler,
+		},
+		{
+			MethodName: "CreateLease",
+			Handler:    _BookingService_CreateLease_Handler,
+		},
+		{
+			MethodName: "CreateBooking",
+			Handler:    _BookingService_CreateBooking_Handler,
+		},
+		{
+			MethodName: "UpdateBooking",
+			Handler:    _BookingService_UpdateBooking_Handler,
+		},
+		{
+			MethodName: "GetBookingStatus",
+			Handler:    _BookingService_GetBookingStatus_Handler,
+		},
+		{
+			MethodName: "ListBookings",
+			Handler:    _BookingService_ListBookings_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "booking_service.proto",
+}
+
+func init() { proto.RegisterFile("booking_service.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
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+}
diff --git a/bookingservice/booking_service.proto b/bookingservice/booking_service.proto
new file mode 100644
index 0000000..e515022
--- /dev/null
+++ b/bookingservice/booking_service.proto
@@ -0,0 +1,569 @@
+syntax = "proto3";
+
+package ext.maps.booking.partner.v2;
+
+import "google/protobuf/duration.proto";
+import "google/protobuf/field_mask.proto";
+import "google/protobuf/timestamp.proto";
+
+// Manages slot availability, leases and bookings for an inventory of
+// appointments
+service BookingService {
+  // Gets availability information for an appointment slot
+  rpc CheckAvailability(CheckAvailabilityRequest)
+      returns (CheckAvailabilityResponse) {
+  }
+
+  // Creates a new lease
+  rpc CreateLease(CreateLeaseRequest) returns (CreateLeaseResponse) {
+  }
+
+  // Creates a booking
+  rpc CreateBooking(CreateBookingRequest) returns (CreateBookingResponse) {
+  }
+
+  // Updates an existing booking
+  rpc UpdateBooking(UpdateBookingRequest) returns (UpdateBookingResponse) {
+  }
+
+  // Gets status for an existing booking
+  rpc GetBookingStatus(GetBookingStatusRequest)
+      returns (GetBookingStatusResponse) {
+  }
+
+  // Lists all bookings for a user
+  rpc ListBookings(ListBookingsRequest) returns (ListBookingsResponse) {
+  }
+}
+
+// An inventory slot
+message Slot {
+  // ID of the merchant for the slot
+  string merchant_id = 1;
+
+  // ID of the merchant service
+  string service_id = 2;
+
+  // Start time of the appointment slot
+  google.protobuf.Timestamp start_time = 3;
+
+  // Duration of the appointment slot
+  google.protobuf.Duration duration = 4;
+
+  // Opaque tag that identifies the availability slot and matches the value
+  // provided in the availability feed
+  string availability_tag = 5;
+
+  // The set of resources that disambiguates the appointment slot, e.g. by
+  // indicating the staff member and room selected by the user
+  Resources resources = 6;
+
+  reserved 7;
+}
+
+// Temporary lease for an inventory slot
+message Lease {
+  // ID of the lease.
+  // Not populated in CreateLeaseRequest. The value is chosen by the partner and
+  // has to be returned in the response of CreateLease.
+  string lease_id = 1;
+
+  // The appointment slot that the lease is created for.
+  Slot slot = 2;
+
+  // Unique identifier for this lease, chosen by Reserve with Google. Serves as
+  // an idempotency token for [ext.maps.booking.partner.v2.CreateLease]
+  // requests.
+  string user_reference = 3;
+
+  // Expiration time of the lease
+  google.protobuf.Timestamp lease_expiration_time = 4;
+}
+
+// Reference to a [ext.maps.booking.partner.v2.Lease] that has been created via
+// [ext.maps.booking.partner.v2.CreateLease]
+message LeaseReference {
+  // Lease ID
+  string lease_id = 1;
+}
+
+// A booking for an inventory slot
+message Booking {
+  // ID of this booking
+  string booking_id = 1;
+
+  // The appointment slot of this booking
+  Slot slot = 2;
+
+  // Personal information of the user making the appointment
+  UserInformation user_information = 3;
+
+  // Status of the booking
+  BookingStatus status = 4;
+
+  // Information about payment transactions that relate to the booking.
+  PaymentInformation payment_information = 5;
+}
+
+// Personal information about the person making a booking
+message UserInformation {
+  // Unique ID of the user to the partner, chosen by Reserve with Google.
+  string user_id = 1;
+
+  // Given name of the user
+  string given_name = 2;
+
+  // Family name of the user
+  string family_name = 3;
+
+  // Address of the user (optional)
+  PostalAddress address = 4;
+
+  // Phone number of the user (optional)
+  string telephone = 5;
+
+  // Email address of the user
+  string email = 6;
+}
+
+// Postal address for a user
+message PostalAddress {
+  // The country, e.g. "USA".
+  string address_country = 1;
+  // The locality, e.g. "Mountain View".
+  string address_locality = 2;
+  // The region, e.g. "CA".
+  string address_region = 3;
+  // The post office box number, e.g. "3112", optional.
+  string post_office_box_number = 4;
+  // The postal code, e.g. "94043".
+  string postal_code = 5;
+  // The street address, e.g. "1600 Amphitheatre Pkwy".
+  string street_address = 6;
+}
+
+// Parameters to specify how the partner will process payment for a given
+// booking.
+//
+// A sample request:
+//   processor: PROCESSOR_STRIPE
+//   payment_method_token: "pk_live_12345abcdef"
+//   version: "2017-06-15"
+message PaymentProcessingParameters {
+  enum PaymentProcessor {
+    PAYMENT_PROCESSOR_UNSPECIFIED = 0;
+    PROCESSOR_STRIPE = 1;
+    PROCESSOR_BRAINTREE = 2;
+  }
+  PaymentProcessor processor = 1;
+
+  // The token representing the payment method that will be used to pay
+  // for this booking. This token can be only used once. This token can be
+  // only used for the merchant associated with this booking.
+  //
+  // Each processor may choose its own format for this field.
+  // Stripe uses "pk_live_1234abc..." for live keys and "pk_test_1234abc..."
+  // for test keys.
+  string payment_method_token = 2;
+
+  // The payment processor API version that the given payment token is valid
+  // for.
+  //
+  // Each processor may choose its own format for this field.
+  // Stripe uses a date (e.g. "2017-06-15").
+  string version = 3;
+}
+
+message Price {
+  // The price in micro-units of the currency.
+  // Fractions of smallest currency unit will be rounded using nearest even
+  // rounding. (e.g. For USD 2.5 cents rounded to 2 cents, 3.5 cents rounded to
+  // 4 cents, 0.5 cents rounded to 0 cents, 2.51 cents rounded to 3 cents).
+  int64 price_micros = 1;
+  // The currency of the price that is defined in ISO 4217.
+  string currency_code = 2;
+}
+
+enum PaymentOptionType {
+  PAYMENT_OPTION_TYPE_UNSPECIFIED = 0;
+  PAYMENT_OPTION_SINGLE_USE = 1;
+  PAYMENT_OPTION_MULTI_USE = 2;
+  PAYMENT_OPTION_UNLIMITED_USE = 3;
+}
+
+// This describes a payment option, such as a pack, membership, or
+// single-session pass after it has been purchased by a user. It includes an
+// identifier for the user payment option, as well as some information about
+// the payment option with which it is associated.
+message UserPaymentOption {
+  // A unique identifier for the user payment option. This Id MUST be unique
+  // for all UserPaymentOptions across all merchants and users.
+  string user_payment_option_id = 1;
+  // The user payment option will be valid (usable) between start_time and
+  // end_time. Attempts to use a user payment option to make a booking outside
+  // of this interval  will fail.
+  google.protobuf.Timestamp valid_start_time = 2;
+  google.protobuf.Timestamp valid_end_time = 3;
+  // The type of the payment option associated with this user payment option.
+  // This can be unlimited for a membership or subscription, multi-use for a
+  // pack, or single-use.
+  PaymentOptionType type = 4;
+  // The original number of uses for this user payment option when it was
+  // purchased. This value is ignored for unlimited payment options.
+  int32 original_count = 5;
+  // The number of uses remaining for this user payment option. If this number
+  // is 0 for a pack, attempts to use this payment option to make a booking will
+  // fail.
+  int32 current_count = 6;
+  // The id of the payment option that has been used to purchase this user
+  // payment option.
+  string payment_option_id = 7;
+}
+
+// Payment details that are sent when creating a new booking.
+message PaymentInformation {
+  // Prepayment status of the booking.
+  // If the prepayment_status is PREPAYMENT_PROVIDED, then
+  // payment_transaction_id contains the associated unique transaction id for
+  // the purchase.
+  // If the prepayment status is PREPAYMENT_REFUNDED, then
+  // payment_transaction_id contains the associated unique transaction id for
+  // the refund.
+  PrepaymentStatus prepayment_status = 1;
+
+  // Unique identifier for a payment transaction associated with the booking.
+  // Empty if not applicable.
+  string payment_transaction_id = 2;
+
+  // These fields must match the service price (specified in the Services feed)
+  // or the PaymentOption corresponding with this service.
+  // They are included in the booking request and response to verify that
+  // the price indicated in the feed has not changed since the last feed
+  // update.
+  //
+  // The price of the booking, exclusive of any taxes.
+  // Existence of price or taxes does not imply that they have been paid,
+  // prepayment_state should be used for that purpose.
+  Price price = 3;
+  // Taxes that are calculated to be paid for this booking.
+  // If this field is absent the price is assumed to be exempt from or already
+  // inclusive of applicable taxes.
+  Price tax_amount = 4;
+
+  // Who handles payment processing?
+  // If payment is processed by the partner, CreateBooking request will
+  // include additional parameters (PaymentProcessingParameters) indicating
+  // the payment method to be used to process the payment.
+  enum PaymentProcessedBy {
+    PAYMENT_PROCESSED_BY_UNSPECIFIED = 0;
+    PROCESSED_BY_GOOGLE = 1;
+    PROCESSED_BY_PARTNER = 2;
+  }
+  PaymentProcessedBy payment_processed_by = 5;
+
+  // The id of the payment option or user payment option associated with the
+  // booking.
+  // If a payment option is purchased as part of a booking, payment_option_id
+  // will be set with the id of that payment option.
+  // If an already purchased user payment option is being used to pay for a
+  // booking, user_payment_option_id will be set with the id of that user
+  // payment option.
+  // When included as part of a response proto, the user_payment_option_id
+  // should be set and must match the UserPaymentOption that is returned in the
+  // RPC response (e.g. the user_payment_option returned in
+  // CreateBookingResponse).
+  oneof payment_id {
+    // The id of the payment option associated with this booking. If this field
+    // is populated, price (and tax_amount, if applicable) must be  populated as
+    // well.
+    string payment_option_id = 6;
+
+    // The id of the user payment option used to pay for this booking.
+    string user_payment_option_id = 7;
+  }
+}
+
+// Status of a booking.
+//
+// Updating booking status does not change the status of the associated payment.
+// Prepayment status updates should be done using the PrepaymentStatus enum.
+//
+// nextID: 6
+enum BookingStatus {
+  // Not specified.
+  BOOKING_STATUS_UNSPECIFIED = 0;
+  // Booking has been confirmed
+  CONFIRMED = 1;
+  // Booking is awaiting confirmation by the merchant before it can transition
+  // into CONFIRMED status
+  PENDING_MERCHANT_CONFIRMATION = 2;
+  // Booking has been canceled on behalf of the user.
+  // The merchant can still trigger a manual refund.
+  CANCELED = 3;
+  // User did not show for the appointment
+  NO_SHOW = 4;
+  // User did not show for the appointment in violation of the cancellation
+  // policy.
+  NO_SHOW_PENALIZED = 5;
+}
+
+// Status data that conveys why (1) creating a lease or (2) creating or updating
+// a booking fails.
+// BookingFailure is intended to primarily capture business logic errors.
+message BookingFailure {
+  enum Cause {
+    // Default value: Don't use; amounts to an "unknown error"
+    CAUSE_UNSPECIFIED = 0;
+    // The referenced availability slot is not available any longer.
+    SLOT_UNAVAILABLE = 1;
+    // The user has already booked an appointment for the referenced
+    // availability slot.
+    SLOT_ALREADY_BOOKED_BY_USER = 2;
+    // The lease (if provided) has expired and cannot be used any longer to
+    // complete the requested booking.
+    LEASE_EXPIRED = 3;
+    // The requested cancellation cannot be performed at the current time due
+    // to time restrictions in the merchant's cancellation policy.
+    OUTSIDE_CANCELLATION_WINDOW = 4;
+    // An error was encountered while processing the payment because the
+    // provided credit card type was not accepted by the merchant. The credit
+    // card type must be supplied in rejected_card_type.
+    PAYMENT_ERROR_CARD_TYPE_REJECTED = 5;
+    // An error was encountered while processing the payment because the
+    // provided credit card was declined.
+    PAYMENT_ERROR_CARD_DECLINED = 6;
+    // An error was encountered with the pack/membership used to pay for the
+    // booking. There could be no valid uses left, it could have expired, etc.
+    PAYMENT_OPTION_NOT_VALID = 7;
+    // An error was encountered while processing the payment for this booking.
+    // Use this value to indicate a general payment related error, only if the
+    // error does not match to a specific payment error above.
+    PAYMENT_ERROR = 8;
+    // User cannot use the given payment option (e.g. user trying to use a
+    // first time price for the second time).
+    USER_CANNOT_USE_PAYMENT_OPTION = 9;
+    // A booking that the user tried to cancel has already been cancelled.
+    BOOKING_ALREADY_CANCELLED = 10;
+    // A booking that the user tried to cancel is not cancellable.
+    BOOKING_NOT_CANCELLABLE = 11;
+  }
+
+  Cause cause = 1;
+
+  // Set if cause is PAYMENT_ERROR_CARD_TYPE_REJECTED to indicate the type of
+  // credit card that was rejected.
+  enum CreditCardType {
+    // Default value. Used if credit card type does not match to one below.
+    CREDIT_CARD_TYPE_UNSPECIFIED = 0;
+    VISA = 1;
+    MASTERCARD = 2;
+    AMERICAN_EXPRESS = 3;
+    DISCOVER = 4;
+  }
+  CreditCardType rejected_card_type = 2;
+
+  // This optional field is used for the partner to include additional
+  // information for debugging purpose only.
+  string description = 3;
+}
+
+// Prepayment status of a booking.
+// Updating payment status will trigger an update on the payment status of the
+// associated booking (if applicable).
+// Currently, the only supported transition is from PREPAYMENT_PROVIDED to
+// PREPAYMENT_REFUNDED, which will initiate a non-reversible refund on the
+// associated payment transaction.
+enum PrepaymentStatus {
+  // Not specified, defaults to PREPAYMENT_NOT_PROVIDED.
+  PREPAYMENT_STATUS_UNSPECIFIED = 0;
+  // The fee for the booking has been paid in advance.
+  PREPAYMENT_PROVIDED = 1;
+  // The fee for the booking has not been paid in advance.
+  PREPAYMENT_NOT_PROVIDED = 2;
+  // The fee was previously PREPAYMENT_PROVIDED but has now been refunded.
+  PREPAYMENT_REFUNDED = 3;
+  // The fee was previously PREPAYMENT_PROVIDED but now has been credited
+  // (user given a UserPaymentOption as a voucher for the booking).
+  // If this is set, the response should also include the updated
+  // UserPaymentOption.
+  PREPAYMENT_CREDITED = 4;
+}
+
+// Resource specification that disambiguates an appointment slot
+message Resources {
+  // The staff ID as provided in the feed or empty if not applicable or no staff
+  // was selected.
+  string staff_id = 1;
+  // The room ID as provided in the feed or empty if not applicable or no room
+  // was selected.
+  string room_id = 2;
+  // For Dining Reservations only: the number of seats requested in the booking.
+  int32 party_size = 3;
+}
+
+// Request to check availability for a [ext.maps.booking.partner.v2.Slot]
+message CheckAvailabilityRequest {
+  // The appointment slot that is being checked
+  Slot slot = 1;
+}
+
+// Response for the [ext.maps.booking.partner.v2.CheckAvailability] RPC with the
+// availability of the appointment slot
+message CheckAvailabilityResponse {
+  // The requested slot.
+  Slot slot = 1;
+  // Number of available spots.
+  // 0 indicates that the appointment slot is not available.
+  int32 count_available = 2;
+  // This enum indicates what requirements exist for the user to acknowledge or
+  // view the requested slots duration/end time.
+  enum DurationRequirement {
+    // The handling of the end time is not specified. This is the default.
+    DURATION_REQUIREMENT_UNSPECIFIED = 0;
+
+    // The end time is not shown to the user.
+    DO_NOT_SHOW_DURATION = 1;
+
+    // The end time has to be shown to the user before an appointment can be
+    // made.
+    MUST_SHOW_DURATION = 2;
+  }
+  // Optionally, return the requirement to show the slots duration and/or
+  // endtime. This field will be ignored if slot is unavailable.
+  DurationRequirement duration_requirement = 3;
+}
+
+// Request to create a [ext.maps.booking.partner.v2.Lease] for a slot in the
+// inventory.  The expiration time in the returned Lease may be modified by the
+// backend, e.g. if the requested lease period is too long.
+message CreateLeaseRequest {
+  // The lease to be created with information about the appointment slot
+  Lease lease = 1;
+}
+
+// Response for the [ext.maps.booking.partner.v2.CreateLease] RPC with the
+// created [ext.maps.booking.partner.v2.Lease]
+message CreateLeaseResponse {
+  // The created [ext.maps.booking.partner.v2.Lease]
+  Lease lease = 1;
+
+  // If creating a lease fails, this field should reflect the business logic
+  // error (e.g., slot has become unavailable) and lease field is expected to be
+  // unset.
+  BookingFailure booking_failure = 2;
+}
+
+// Request to create a [ext.maps.booking.partner.v2.Booking] for an inventory
+// slot. Consumes the lease if provided.
+message CreateBookingRequest {
+  // The inventory slot that is being requested to make this booking.
+  // If lease_ref is provided, slot must match the lease; slot is provided for
+  // the partner to verify the lease information.
+  // If lease_ref is absent, then create the booking for the slot.
+  Slot slot = 1;
+
+  // The lease that is being confirmed to make this booking.
+  // If lease_ref is provided, then create the booking using the lease.
+  LeaseReference lease_ref = 2;
+
+  // Personal information of the user making the appointment
+  UserInformation user_information = 3;
+
+  // Information about payments. When payment authorizations are handled by
+  // Google, if the booking request does not succeed, payment authorizations are
+  // automatically canceled.
+  PaymentInformation payment_information = 4;
+
+  // The parameters to be used if the payment is processed by the partner
+  // (i.e. payment_information.payment_processed_by is equal to
+  // PROCESSED_BY_PARTNER).
+  PaymentProcessingParameters payment_processing_parameters = 5;
+
+  // Idempotency token for [ext.maps.booking.partner.v2.CreateBooking] requests.
+  string idempotency_token = 6;
+}
+
+// Response with the created [ext.maps.booking.partner.v2.Booking] for an
+// inventory slot
+message CreateBookingResponse {
+  // The created booking
+  Booking booking = 1;
+
+  // The updated user payment option used in this booking.
+  // If a new payment option was purchased to pay for the booking, this should
+  // be a newly created user payment option.
+  // If an already purchased user payment option was used for this booking,
+  // this should reflect an updated version of that user payment option.
+  UserPaymentOption user_payment_option = 2;
+
+  // If creating a booking fails, this field should reflect the business logic
+  // error (e.g., slot has become unavailable) and all other fields in the
+  // CreateBookingResponse message are expected to be unset.
+  BookingFailure booking_failure = 3;
+}
+
+// Request to update a [ext.maps.booking.partner.v2.Booking]
+message UpdateBookingRequest {
+  // Field mask of all booking fields to be updated
+  google.protobuf.FieldMask update_mask = 1;
+
+  // The booking to be updated
+  // The following fields can be set in a booking:
+  // - status, to cancel a booking.
+  // - start_time and duration in the slot, to reschedule a booking.
+  Booking booking = 2;
+}
+
+// Response with the updated [ext.maps.booking.partner.v2.Booking]
+message UpdateBookingResponse {
+  // The updated booking
+  Booking booking = 1;
+
+  // The updated user payment option originally used to pay for this booking.
+  // This should be set if the UpdateBookingRequest results in a change to
+  // the UserPaymentOption.
+  // For instance, if the booking is canceled, the UserPaymentOption should
+  // reflect an additional credit to the user. In the case of a multi-use
+  // payment option, the current_count should be increased by one to
+  // allow the user to create another booking with this payment option. In the
+  // case of a single-use payment option, a new single-use user payment option
+  // should be returned.
+  UserPaymentOption user_payment_option = 2;
+
+  // If updating a booking fails, this field should reflect the business logic
+  // error (e.g., booking is not cancellable)
+  BookingFailure booking_failure = 3;
+}
+
+// Request to get booking status and prepayment status for a
+// [ext.maps.booking.partner.v2.Booking]
+message GetBookingStatusRequest {
+  // ID of the existing booking
+  string booking_id = 1;
+}
+
+// Response for the [ext.maps.booking.partner.v2.GetBookingStatus] RPC with
+// booking status and prepayment status
+message GetBookingStatusResponse {
+  // ID of the booking
+  string booking_id = 1;
+
+  // Status of the booking
+  BookingStatus booking_status = 2;
+
+  // Prepayment status of the booking
+  PrepaymentStatus prepayment_status = 3;
+}
+
+// Request to list all bookings for a user
+message ListBookingsRequest {
+  // ID of the user
+  string user_id = 1;
+}
+
+// Response for the [ext.maps.booking.partner.v2.ListBookings] RPC with all
+// bookings for the requested user
+message ListBookingsResponse {
+  // All bookings of the user
+  repeated Booking bookings = 1;
+}
\ No newline at end of file
diff --git a/feeds/availability_feed.pb.go b/feeds/availability_feed.pb.go
new file mode 100644
index 0000000..c41f821
--- /dev/null
+++ b/feeds/availability_feed.pb.go
@@ -0,0 +1,637 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: availability_feed.proto
+
+/*
+Package maps_booking_feeds is a generated protocol buffer package.
+
+It is generated from these files:
+	availability_feed.proto
+
+It has these top-level messages:
+	FeedMetadata
+	AvailabilityFeed
+	ServiceAvailability
+	Availability
+	Resources
+	TimeRange
+*/
+package maps_booking_feeds
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type FeedMetadata_ProcessingInstruction int32
+
+const (
+	// By default we will assume that this feed is an incremental feed.
+	FeedMetadata_PROCESS_UNKNOWN FeedMetadata_ProcessingInstruction = 0
+	// This Feed message is one shard of a complete feed. Anything previously
+	// supplied by this partner will be deleted; the contents of this feed
+	// represent the entire state of the world.
+	FeedMetadata_PROCESS_AS_COMPLETE FeedMetadata_ProcessingInstruction = 1
+	// This Feed message is one shard of an incremental feed. Existing entities
+	// will be left untouched except as modified in this feed.
+	FeedMetadata_PROCESS_AS_INCREMENTAL FeedMetadata_ProcessingInstruction = 2
+)
+
+var FeedMetadata_ProcessingInstruction_name = map[int32]string{
+	0: "PROCESS_UNKNOWN",
+	1: "PROCESS_AS_COMPLETE",
+	2: "PROCESS_AS_INCREMENTAL",
+}
+var FeedMetadata_ProcessingInstruction_value = map[string]int32{
+	"PROCESS_UNKNOWN":        0,
+	"PROCESS_AS_COMPLETE":    1,
+	"PROCESS_AS_INCREMENTAL": 2,
+}
+
+func (x FeedMetadata_ProcessingInstruction) String() string {
+	return proto.EnumName(FeedMetadata_ProcessingInstruction_name, int32(x))
+}
+func (FeedMetadata_ProcessingInstruction) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor0, []int{0, 0}
+}
+
+type FeedMetadata struct {
+	// Instructs us how to process the feed: either as a shard of a complete feed,
+	// or as a shard of an incremental update.
+	ProcessingInstruction FeedMetadata_ProcessingInstruction `protobuf:"varint,1,opt,name=processing_instruction,json=processingInstruction,enum=maps.booking.feeds.FeedMetadata_ProcessingInstruction" json:"processing_instruction,omitempty"`
+	// The current shard and total number of shards for this feed.
+	//
+	// Shard number is assumed to be zero-based.
+	//
+	// There does not need to be any relationship to the file name.
+	//
+	// Shards do not need to be transferred in order, and they may not be
+	// processed in order.
+	ShardNumber int32 `protobuf:"varint,2,opt,name=shard_number,json=shardNumber" json:"shard_number,omitempty"`
+	TotalShards int32 `protobuf:"varint,3,opt,name=total_shards,json=totalShards" json:"total_shards,omitempty"`
+	// An identifier that must be consistent across all shards in a feed.
+	// This value must be globally unique across each feed type.
+	//
+	// This value ensures that complete feeds spanning multiple shards are
+	// processed together correctly.
+	//
+	// Clients only need to set this value when the processing_instruction is set
+	// to PROCESS_AS_COMPLETE and the feed spans multiple shards (defined by
+	// total_shards).
+	//
+	// Feeds that span multiple shards must set this nonce to the same value.
+	Nonce uint64 `protobuf:"varint,5,opt,name=nonce" json:"nonce,omitempty"`
+	// The timestamp at which this feed shard was generated.
+	//
+	// In Unix time format (seconds since the epoch).
+	GenerationTimestamp int64 `protobuf:"varint,4,opt,name=generation_timestamp,json=generationTimestamp" json:"generation_timestamp,omitempty"`
+}
+
+func (m *FeedMetadata) Reset()                    { *m = FeedMetadata{} }
+func (m *FeedMetadata) String() string            { return proto.CompactTextString(m) }
+func (*FeedMetadata) ProtoMessage()               {}
+func (*FeedMetadata) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *FeedMetadata) GetProcessingInstruction() FeedMetadata_ProcessingInstruction {
+	if m != nil {
+		return m.ProcessingInstruction
+	}
+	return FeedMetadata_PROCESS_UNKNOWN
+}
+
+func (m *FeedMetadata) GetShardNumber() int32 {
+	if m != nil {
+		return m.ShardNumber
+	}
+	return 0
+}
+
+func (m *FeedMetadata) GetTotalShards() int32 {
+	if m != nil {
+		return m.TotalShards
+	}
+	return 0
+}
+
+func (m *FeedMetadata) GetNonce() uint64 {
+	if m != nil {
+		return m.Nonce
+	}
+	return 0
+}
+
+func (m *FeedMetadata) GetGenerationTimestamp() int64 {
+	if m != nil {
+		return m.GenerationTimestamp
+	}
+	return 0
+}
+
+type AvailabilityFeed struct {
+	Metadata            *FeedMetadata          `protobuf:"bytes,1,opt,name=metadata" json:"metadata,omitempty"`
+	ServiceAvailability []*ServiceAvailability `protobuf:"bytes,2,rep,name=service_availability,json=serviceAvailability" json:"service_availability,omitempty"`
+}
+
+func (m *AvailabilityFeed) Reset()                    { *m = AvailabilityFeed{} }
+func (m *AvailabilityFeed) String() string            { return proto.CompactTextString(m) }
+func (*AvailabilityFeed) ProtoMessage()               {}
+func (*AvailabilityFeed) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *AvailabilityFeed) GetMetadata() *FeedMetadata {
+	if m != nil {
+		return m.Metadata
+	}
+	return nil
+}
+
+func (m *AvailabilityFeed) GetServiceAvailability() []*ServiceAvailability {
+	if m != nil {
+		return m.ServiceAvailability
+	}
+	return nil
+}
+
+type ServiceAvailability struct {
+	// If provided, we will consider the Availability entities provided to be a
+	// complete snapshot from [start_timestamp_restrict, end_timestamp_restrict).
+	// That is, all existing availability will be deleted if the following
+	// condition holds true:
+	//
+	//    start_timestamp_restrict <= Availability.start_sec &&
+	//    Availability.start_sec < end_timestamp_restrict
+	//
+	// If a resource_restrict message is set, the condition is further restricted:
+	//
+	//    Availability.resource.staff_id == resource_restrict.staff_id &&
+	//    Availability.resource.room_id == resource_restrict.room_id
+	//
+	// These fields are typically used to provide a complete update of
+	// availability in a given time range.
+	//
+	// Setting start_timestamp_restrict while leaving end_timestamp_restrict unset
+	// is interpreted to mean all time beginning at start_timestamp_restrict.
+	//
+	// Setting end_timestamp_restrict while leaving start_timestamp_restrict unset
+	// is interpreted to mean all time up to the end_timestamp_restrict.
+	//
+	// In Unix time format (seconds since the epoch).
+	StartTimestampRestrict int64 `protobuf:"varint,1,opt,name=start_timestamp_restrict,json=startTimestampRestrict" json:"start_timestamp_restrict,omitempty"`
+	EndTimestampRestrict   int64 `protobuf:"varint,2,opt,name=end_timestamp_restrict,json=endTimestampRestrict" json:"end_timestamp_restrict,omitempty"`
+	// If provided, the timestamp restricts will be applied only to the given
+	// merchant or service.
+	//
+	// These fields are typically used to provide complete snapshot of
+	// availability in a given range (defined above) for a specific merchant or
+	// service.
+	//
+	// Leaving these fields unset, or setting these to the empty string or null,
+	// is interpreted to mean that no restrict is intended.
+	MerchantIdRestrict string `protobuf:"bytes,3,opt,name=merchant_id_restrict,json=merchantIdRestrict" json:"merchant_id_restrict,omitempty"`
+	ServiceIdRestrict  string `protobuf:"bytes,4,opt,name=service_id_restrict,json=serviceIdRestrict" json:"service_id_restrict,omitempty"`
+	// Setting resources_restrict further restricts the scope of the update to
+	// just this set of resources. All id fields of the resources must match
+	// exactly.
+	ResourcesRestrict *Resources      `protobuf:"bytes,6,opt,name=resources_restrict,json=resourcesRestrict" json:"resources_restrict,omitempty"`
+	Availability      []*Availability `protobuf:"bytes,5,rep,name=availability" json:"availability,omitempty"`
+}
+
+func (m *ServiceAvailability) Reset()                    { *m = ServiceAvailability{} }
+func (m *ServiceAvailability) String() string            { return proto.CompactTextString(m) }
+func (*ServiceAvailability) ProtoMessage()               {}
+func (*ServiceAvailability) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
+
+func (m *ServiceAvailability) GetStartTimestampRestrict() int64 {
+	if m != nil {
+		return m.StartTimestampRestrict
+	}
+	return 0
+}
+
+func (m *ServiceAvailability) GetEndTimestampRestrict() int64 {
+	if m != nil {
+		return m.EndTimestampRestrict
+	}
+	return 0
+}
+
+func (m *ServiceAvailability) GetMerchantIdRestrict() string {
+	if m != nil {
+		return m.MerchantIdRestrict
+	}
+	return ""
+}
+
+func (m *ServiceAvailability) GetServiceIdRestrict() string {
+	if m != nil {
+		return m.ServiceIdRestrict
+	}
+	return ""
+}
+
+func (m *ServiceAvailability) GetResourcesRestrict() *Resources {
+	if m != nil {
+		return m.ResourcesRestrict
+	}
+	return nil
+}
+
+func (m *ServiceAvailability) GetAvailability() []*Availability {
+	if m != nil {
+		return m.Availability
+	}
+	return nil
+}
+
+// An availability of the merchant's service, indicating time and number
+// of spots.
+// The availability feed should be a list of this message.
+// Please note that it's up to the partner to call out all the possible
+// availabilities.
+// If a massage therapist is available 9am-12pm, and they provide
+// one-hour massage sessions, the aggregator should provide the feed as
+//   availability {start_sec: 9am, duration: 60 minutes, ...}
+//   availability {start_sec: 10am, duration: 60 minutes, ...}
+//   availability {start_sec: 11am, duration: 60 minutes, ...}
+// instead of
+//   availability {start_sec: 9am, duration: 180 minutes, ...}
+//
+type Availability struct {
+	// An opaque string from an aggregator to identify a merchant.
+	MerchantId string `protobuf:"bytes,1,opt,name=merchant_id,json=merchantId" json:"merchant_id,omitempty"`
+	// An opaque string from aggregator to identify a service of the
+	// merchant.
+	ServiceId string `protobuf:"bytes,2,opt,name=service_id,json=serviceId" json:"service_id,omitempty"`
+	// Start time of this availability, using epoch time in seconds.
+	StartSec int64 `protobuf:"varint,3,opt,name=start_sec,json=startSec" json:"start_sec,omitempty"`
+	// Duration of the service in seconds, e.g. 30 minutes for a chair massage.
+	DurationSec int64 `protobuf:"varint,4,opt,name=duration_sec,json=durationSec" json:"duration_sec,omitempty"`
+	// Number of total spots and open spots of this availability.
+	// E.g. a Yoga class of 10 spots with 3 booked.
+	//   availability {spots_total: 10, spots_open: 7 ...}
+	// E.g. a chair massage session which was already booked.
+	//   availability {spots_total: 1, spots_open: 0 ...}
+	//
+	// Note: If sending requests using the availability compression format defined
+	//       below, these two fields will be inferred. A Recurrence
+	//       implies spots_total=1 and spots_open=1. A ScheduleException implies
+	//       spots_total=1 and spots_open=0.
+	SpotsTotal int64 `protobuf:"varint,5,opt,name=spots_total,json=spotsTotal" json:"spots_total,omitempty"`
+	SpotsOpen  int64 `protobuf:"varint,6,opt,name=spots_open,json=spotsOpen" json:"spots_open,omitempty"`
+	// An optional opaque string to identify this availability slot. If set, it
+	// will be included in the requests that book/update/cancel appointments.
+	AvailabilityTag string `protobuf:"bytes,7,opt,name=availability_tag,json=availabilityTag" json:"availability_tag,omitempty"`
+	// Optional resources used to disambiguate this availability slot from
+	// others when different staff, room, or party_size values are part
+	// of the service.
+	//
+	// E.g. the same Yoga class with two 2 instructors.
+	//  availability { resources { staff_id: "1" staff_name: "Amy" }
+	//                 spots_total: 10 spots_open: 7 }
+	//  availability { resources { staff_id: "2" staff_name: "John" }
+	//                 spots_total: 5 spots_open: 2 }
+	Resources *Resources `protobuf:"bytes,8,opt,name=resources" json:"resources,omitempty"`
+	// A list of ids referencing the payment options which can be used to pay
+	// for this slot. The actual payment options are defined at the Merchant
+	// level, and can also be shared among multiple Merchants.
+	//
+	// This field overrides any payment_option_ids specified in the service
+	// message. Similarly payment_option_ids specified here do NOT have to be
+	// present in the service message, though must be defined at the
+	// Merchant level.
+	PaymentOptionId []string `protobuf:"bytes,9,rep,name=payment_option_id,json=paymentOptionId" json:"payment_option_id,omitempty"`
+	// The recurrence information for the availability, representing more than one
+	// start time. A recurrence should contain appointments for one working day.
+	Recurrence *Availability_Recurrence `protobuf:"bytes,10,opt,name=recurrence" json:"recurrence,omitempty"`
+	// When this service cannot be scheduled. To limit the number of
+	// schedule_exception messages consider joining adjacent exceptions.
+	ScheduleException []*Availability_ScheduleException `protobuf:"bytes,11,rep,name=schedule_exception,json=scheduleException" json:"schedule_exception,omitempty"`
+}
+
+func (m *Availability) Reset()                    { *m = Availability{} }
+func (m *Availability) String() string            { return proto.CompactTextString(m) }
+func (*Availability) ProtoMessage()               {}
+func (*Availability) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
+
+func (m *Availability) GetMerchantId() string {
+	if m != nil {
+		return m.MerchantId
+	}
+	return ""
+}
+
+func (m *Availability) GetServiceId() string {
+	if m != nil {
+		return m.ServiceId
+	}
+	return ""
+}
+
+func (m *Availability) GetStartSec() int64 {
+	if m != nil {
+		return m.StartSec
+	}
+	return 0
+}
+
+func (m *Availability) GetDurationSec() int64 {
+	if m != nil {
+		return m.DurationSec
+	}
+	return 0
+}
+
+func (m *Availability) GetSpotsTotal() int64 {
+	if m != nil {
+		return m.SpotsTotal
+	}
+	return 0
+}
+
+func (m *Availability) GetSpotsOpen() int64 {
+	if m != nil {
+		return m.SpotsOpen
+	}
+	return 0
+}
+
+func (m *Availability) GetAvailabilityTag() string {
+	if m != nil {
+		return m.AvailabilityTag
+	}
+	return ""
+}
+
+func (m *Availability) GetResources() *Resources {
+	if m != nil {
+		return m.Resources
+	}
+	return nil
+}
+
+func (m *Availability) GetPaymentOptionId() []string {
+	if m != nil {
+		return m.PaymentOptionId
+	}
+	return nil
+}
+
+func (m *Availability) GetRecurrence() *Availability_Recurrence {
+	if m != nil {
+		return m.Recurrence
+	}
+	return nil
+}
+
+func (m *Availability) GetScheduleException() []*Availability_ScheduleException {
+	if m != nil {
+		return m.ScheduleException
+	}
+	return nil
+}
+
+// Recurrence messages are optional, but allow for a more compact
+// representation of consistently repeating availability slots. They typically
+// represent a day's working schedule.
+// ScheduleException messages are then used to represent booked/unavailable
+// time ranges within the work day.
+//
+// Requirements:
+//   1. The expansion of availability slots or recurrences must NOT create
+//      identical slots. If the ids, start_sec, duration_sec, and resources
+//      match, slots are considered identical.
+//   2. Do NOT mix the standard availability format and recurrence within the
+//      slots of a single service. Recurrence benefits merchants/services that
+//      offer appointments. The standard format is geared towards
+//      merchants/services with regularly scheduled classes.
+type Availability_Recurrence struct {
+	// The inclusive maximum UTC timestamp the availability repeats until.
+	RepeatUntilSec int64 `protobuf:"varint,1,opt,name=repeat_until_sec,json=repeatUntilSec" json:"repeat_until_sec,omitempty"`
+	// Defines the time between successive availability slots.
+	//
+	// E.g. An availability with a duration of 20 min, a repeat_every_sec of
+	// 30 min, a start_sec of 9:00am, and a repeat_until_sec of 11:00am will
+	// yield slots at 9-9:20am, 9:30-9:50am, 10-10:20am, 10:30-10:50am,
+	// 11-11:20am.
+	RepeatEverySec int32 `protobuf:"varint,2,opt,name=repeat_every_sec,json=repeatEverySec" json:"repeat_every_sec,omitempty"`
+}
+
+func (m *Availability_Recurrence) Reset()                    { *m = Availability_Recurrence{} }
+func (m *Availability_Recurrence) String() string            { return proto.CompactTextString(m) }
+func (*Availability_Recurrence) ProtoMessage()               {}
+func (*Availability_Recurrence) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3, 0} }
+
+func (m *Availability_Recurrence) GetRepeatUntilSec() int64 {
+	if m != nil {
+		return m.RepeatUntilSec
+	}
+	return 0
+}
+
+func (m *Availability_Recurrence) GetRepeatEverySec() int32 {
+	if m != nil {
+		return m.RepeatEverySec
+	}
+	return 0
+}
+
+// ScheduleException messages are used to represent booked/unavailable time
+// ranges within the work day. As time slots are booked, the list of
+// exceptions should grow to reflect the newly unavailable time ranges.
+// The recurrence itself shouldn't be modified.
+type Availability_ScheduleException struct {
+	// The time range of the exception.
+	TimeRange *TimeRange `protobuf:"bytes,1,opt,name=time_range,json=timeRange" json:"time_range,omitempty"`
+}
+
+func (m *Availability_ScheduleException) Reset()         { *m = Availability_ScheduleException{} }
+func (m *Availability_ScheduleException) String() string { return proto.CompactTextString(m) }
+func (*Availability_ScheduleException) ProtoMessage()    {}
+func (*Availability_ScheduleException) Descriptor() ([]byte, []int) {
+	return fileDescriptor0, []int{3, 1}
+}
+
+func (m *Availability_ScheduleException) GetTimeRange() *TimeRange {
+	if m != nil {
+		return m.TimeRange
+	}
+	return nil
+}
+
+// A resource is used to disambiguate availability slots from one another when
+// different staff, room or party_size values are part of the service.
+// Multiple slots for the same service and time interval can co-exist when they
+// have different resources.
+type Resources struct {
+	// Optional id for a staff member providing the service. This field identifies
+	// the staff member across all merchants, services, and availability records.
+	// It also needs to be stable over time to allow correlation with past
+	// bookings.
+	// This field must be present if staff_name is present.
+	StaffId string `protobuf:"bytes,1,opt,name=staff_id,json=staffId" json:"staff_id,omitempty"`
+	// Optional name of a staff member providing the service. This field will be
+	// displayed to users making a booking, and should be human readable, as
+	// opposed to an opaque identifier.
+	// This field must be present if staff_id is present.
+	StaffName string `protobuf:"bytes,2,opt,name=staff_name,json=staffName" json:"staff_name,omitempty"`
+	// An optional id for the room the service is located in. This field
+	// identifies the room across all merchants, services, and availability
+	// records. It also needs to be stable over time to allow correlation with
+	// past bookings.
+	// This field must be present if room_name is present.
+	RoomId string `protobuf:"bytes,3,opt,name=room_id,json=roomId" json:"room_id,omitempty"`
+	// An optional name for the room the service is located in. This
+	// field will be displayed to users making a booking, and should be human
+	// readable, as opposed to an opaque identifier.
+	// This field must be present if room_id is present.
+	RoomName string `protobuf:"bytes,4,opt,name=room_name,json=roomName" json:"room_name,omitempty"`
+	// Applicable only for Dining: The party size which can be accommodated
+	// during this time slot. A restaurant can be associated with multiple Slots
+	// for the same time, each specifying a different party_size, if for instance
+	// 2, 3, or 4 people can be seated with a reservation.
+	PartySize int32 `protobuf:"varint,5,opt,name=party_size,json=partySize" json:"party_size,omitempty"`
+}
+
+func (m *Resources) Reset()                    { *m = Resources{} }
+func (m *Resources) String() string            { return proto.CompactTextString(m) }
+func (*Resources) ProtoMessage()               {}
+func (*Resources) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} }
+
+func (m *Resources) GetStaffId() string {
+	if m != nil {
+		return m.StaffId
+	}
+	return ""
+}
+
+func (m *Resources) GetStaffName() string {
+	if m != nil {
+		return m.StaffName
+	}
+	return ""
+}
+
+func (m *Resources) GetRoomId() string {
+	if m != nil {
+		return m.RoomId
+	}
+	return ""
+}
+
+func (m *Resources) GetRoomName() string {
+	if m != nil {
+		return m.RoomName
+	}
+	return ""
+}
+
+func (m *Resources) GetPartySize() int32 {
+	if m != nil {
+		return m.PartySize
+	}
+	return 0
+}
+
+type TimeRange struct {
+	BeginSec int64 `protobuf:"varint,1,opt,name=begin_sec,json=beginSec" json:"begin_sec,omitempty"`
+	EndSec   int64 `protobuf:"varint,2,opt,name=end_sec,json=endSec" json:"end_sec,omitempty"`
+}
+
+func (m *TimeRange) Reset()                    { *m = TimeRange{} }
+func (m *TimeRange) String() string            { return proto.CompactTextString(m) }
+func (*TimeRange) ProtoMessage()               {}
+func (*TimeRange) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{5} }
+
+func (m *TimeRange) GetBeginSec() int64 {
+	if m != nil {
+		return m.BeginSec
+	}
+	return 0
+}
+
+func (m *TimeRange) GetEndSec() int64 {
+	if m != nil {
+		return m.EndSec
+	}
+	return 0
+}
+
+func init() {
+	proto.RegisterType((*FeedMetadata)(nil), "maps.booking.feeds.FeedMetadata")
+	proto.RegisterType((*AvailabilityFeed)(nil), "maps.booking.feeds.AvailabilityFeed")
+	proto.RegisterType((*ServiceAvailability)(nil), "maps.booking.feeds.ServiceAvailability")
+	proto.RegisterType((*Availability)(nil), "maps.booking.feeds.Availability")
+	proto.RegisterType((*Availability_Recurrence)(nil), "maps.booking.feeds.Availability.Recurrence")
+	proto.RegisterType((*Availability_ScheduleException)(nil), "maps.booking.feeds.Availability.ScheduleException")
+	proto.RegisterType((*Resources)(nil), "maps.booking.feeds.Resources")
+	proto.RegisterType((*TimeRange)(nil), "maps.booking.feeds.TimeRange")
+	proto.RegisterEnum("maps.booking.feeds.FeedMetadata_ProcessingInstruction", FeedMetadata_ProcessingInstruction_name, FeedMetadata_ProcessingInstruction_value)
+}
+
+func init() { proto.RegisterFile("availability_feed.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
+	// 859 bytes of a gzipped FileDescriptorProto
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+}
diff --git a/feeds/availability_feed.proto b/feeds/availability_feed.proto
new file mode 100644
index 0000000..e25bd0e
--- /dev/null
+++ b/feeds/availability_feed.proto
@@ -0,0 +1,249 @@
+syntax = "proto3";
+
+package maps.booking.feeds;
+
+message FeedMetadata {
+  enum ProcessingInstruction {
+    // By default we will assume that this feed is an incremental feed.
+    PROCESS_UNKNOWN = 0;
+
+    // This Feed message is one shard of a complete feed. Anything previously
+    // supplied by this partner will be deleted; the contents of this feed
+    // represent the entire state of the world.
+    PROCESS_AS_COMPLETE = 1;
+
+    // This Feed message is one shard of an incremental feed. Existing entities
+    // will be left untouched except as modified in this feed.
+    PROCESS_AS_INCREMENTAL = 2;
+  }
+
+  // Instructs us how to process the feed: either as a shard of a complete feed,
+  // or as a shard of an incremental update.
+  ProcessingInstruction processing_instruction = 1;
+
+  // The current shard and total number of shards for this feed.
+  //
+  // Shard number is assumed to be zero-based.
+  //
+  // There does not need to be any relationship to the file name.
+  //
+  // Shards do not need to be transferred in order, and they may not be
+  // processed in order.
+  int32 shard_number = 2;
+  int32 total_shards = 3;
+
+  // An identifier that must be consistent across all shards in a feed.
+  // This value must be globally unique across each feed type.
+  //
+  // This value ensures that complete feeds spanning multiple shards are
+  // processed together correctly.
+  //
+  // Clients only need to set this value when the processing_instruction is set
+  // to PROCESS_AS_COMPLETE and the feed spans multiple shards (defined by
+  // total_shards).
+  //
+  // Feeds that span multiple shards must set this nonce to the same value.
+  uint64 nonce = 5;
+
+  // The timestamp at which this feed shard was generated.
+  //
+  // In Unix time format (seconds since the epoch).
+  int64 generation_timestamp = 4;
+}
+
+message AvailabilityFeed {
+  FeedMetadata metadata = 1;
+  repeated ServiceAvailability service_availability = 2;
+}
+
+message ServiceAvailability {
+  // If provided, we will consider the Availability entities provided to be a
+  // complete snapshot from [start_timestamp_restrict, end_timestamp_restrict).
+  // That is, all existing availability will be deleted if the following
+  // condition holds true:
+  //
+  //    start_timestamp_restrict <= Availability.start_sec &&
+  //    Availability.start_sec < end_timestamp_restrict
+  //
+  // If a resource_restrict message is set, the condition is further restricted:
+  //
+  //    Availability.resource.staff_id == resource_restrict.staff_id &&
+  //    Availability.resource.room_id == resource_restrict.room_id
+  //
+  // These fields are typically used to provide a complete update of
+  // availability in a given time range.
+  //
+  // Setting start_timestamp_restrict while leaving end_timestamp_restrict unset
+  // is interpreted to mean all time beginning at start_timestamp_restrict.
+  //
+  // Setting end_timestamp_restrict while leaving start_timestamp_restrict unset
+  // is interpreted to mean all time up to the end_timestamp_restrict.
+  //
+  // In Unix time format (seconds since the epoch).
+  int64 start_timestamp_restrict = 1;
+  int64 end_timestamp_restrict = 2;
+
+  // If provided, the timestamp restricts will be applied only to the given
+  // merchant or service.
+  //
+  // These fields are typically used to provide complete snapshot of
+  // availability in a given range (defined above) for a specific merchant or
+  // service.
+  //
+  // Leaving these fields unset, or setting these to the empty string or null,
+  // is interpreted to mean that no restrict is intended.
+  string merchant_id_restrict = 3;
+  string service_id_restrict = 4;
+
+  // Setting resources_restrict further restricts the scope of the update to
+  // just this set of resources. All id fields of the resources must match
+  // exactly.
+  Resources resources_restrict = 6;
+
+  repeated Availability availability = 5;
+}
+
+// An availability of the merchant's service, indicating time and number
+// of spots.
+// The availability feed should be a list of this message.
+// Please note that it's up to the partner to call out all the possible
+// availabilities.
+// If a massage therapist is available 9am-12pm, and they provide
+// one-hour massage sessions, the aggregator should provide the feed as
+//   availability {start_sec: 9am, duration: 60 minutes, ...}
+//   availability {start_sec: 10am, duration: 60 minutes, ...}
+//   availability {start_sec: 11am, duration: 60 minutes, ...}
+// instead of
+//   availability {start_sec: 9am, duration: 180 minutes, ...}
+//
+message Availability {
+  // An opaque string from an aggregator to identify a merchant.
+  string merchant_id = 1;
+  // An opaque string from aggregator to identify a service of the
+  // merchant.
+  string service_id = 2;
+  // Start time of this availability, using epoch time in seconds.
+  int64 start_sec = 3;
+  // Duration of the service in seconds, e.g. 30 minutes for a chair massage.
+  int64 duration_sec = 4;
+  // Number of total spots and open spots of this availability.
+  // E.g. a Yoga class of 10 spots with 3 booked.
+  //   availability {spots_total: 10, spots_open: 7 ...}
+  // E.g. a chair massage session which was already booked.
+  //   availability {spots_total: 1, spots_open: 0 ...}
+  //
+  // Note: If sending requests using the availability compression format defined
+  //       below, these two fields will be inferred. A Recurrence
+  //       implies spots_total=1 and spots_open=1. A ScheduleException implies
+  //       spots_total=1 and spots_open=0.
+  int64 spots_total = 5;
+  int64 spots_open = 6;
+  // An optional opaque string to identify this availability slot. If set, it
+  // will be included in the requests that book/update/cancel appointments.
+  string availability_tag = 7;
+
+  // Optional resources used to disambiguate this availability slot from
+  // others when different staff, room, or party_size values are part
+  // of the service.
+  //
+  // E.g. the same Yoga class with two 2 instructors.
+  //  availability { resources { staff_id: "1" staff_name: "Amy" }
+  //                 spots_total: 10 spots_open: 7 }
+  //  availability { resources { staff_id: "2" staff_name: "John" }
+  //                 spots_total: 5 spots_open: 2 }
+  Resources resources = 8;
+
+  // A list of ids referencing the payment options which can be used to pay
+  // for this slot. The actual payment options are defined at the Merchant
+  // level, and can also be shared among multiple Merchants.
+  //
+  // This field overrides any payment_option_ids specified in the service
+  // message. Similarly payment_option_ids specified here do NOT have to be
+  // present in the service message, though must be defined at the
+  // Merchant level.
+  repeated string payment_option_id = 9;
+
+  // Recurrence messages are optional, but allow for a more compact
+  // representation of consistently repeating availability slots. They typically
+  // represent a day's working schedule.
+  // ScheduleException messages are then used to represent booked/unavailable
+  // time ranges within the work day.
+  //
+  // Requirements:
+  //   1. The expansion of availability slots or recurrences must NOT create
+  //      identical slots. If the ids, start_sec, duration_sec, and resources
+  //      match, slots are considered identical.
+  //   2. Do NOT mix the standard availability format and recurrence within the
+  //      slots of a single service. Recurrence benefits merchants/services that
+  //      offer appointments. The standard format is geared towards
+  //      merchants/services with regularly scheduled classes.
+  message Recurrence {
+    // The inclusive maximum UTC timestamp the availability repeats until.
+    int64 repeat_until_sec = 1;
+    // Defines the time between successive availability slots.
+    //
+    // E.g. An availability with a duration of 20 min, a repeat_every_sec of
+    // 30 min, a start_sec of 9:00am, and a repeat_until_sec of 11:00am will
+    // yield slots at 9-9:20am, 9:30-9:50am, 10-10:20am, 10:30-10:50am,
+    // 11-11:20am.
+    int32 repeat_every_sec = 2;
+  }
+  // The recurrence information for the availability, representing more than one
+  // start time. A recurrence should contain appointments for one working day.
+  Recurrence recurrence = 10;
+
+  // ScheduleException messages are used to represent booked/unavailable time
+  // ranges within the work day. As time slots are booked, the list of
+  // exceptions should grow to reflect the newly unavailable time ranges.
+  // The recurrence itself shouldn't be modified.
+  message ScheduleException {
+    // The time range of the exception.
+    TimeRange time_range = 1;
+  }
+  // When this service cannot be scheduled. To limit the number of
+  // schedule_exception messages consider joining adjacent exceptions.
+  repeated ScheduleException schedule_exception = 11;
+}
+
+// A resource is used to disambiguate availability slots from one another when
+// different staff, room or party_size values are part of the service.
+// Multiple slots for the same service and time interval can co-exist when they
+// have different resources.
+message Resources {
+  // Optional id for a staff member providing the service. This field identifies
+  // the staff member across all merchants, services, and availability records.
+  // It also needs to be stable over time to allow correlation with past
+  // bookings.
+  // This field must be present if staff_name is present.
+  string staff_id = 1;
+
+  // Optional name of a staff member providing the service. This field will be
+  // displayed to users making a booking, and should be human readable, as
+  // opposed to an opaque identifier.
+  // This field must be present if staff_id is present.
+  string staff_name = 2;
+
+  // An optional id for the room the service is located in. This field
+  // identifies the room across all merchants, services, and availability
+  // records. It also needs to be stable over time to allow correlation with
+  // past bookings.
+  // This field must be present if room_name is present.
+  string room_id = 3;
+
+  // An optional name for the room the service is located in. This
+  // field will be displayed to users making a booking, and should be human
+  // readable, as opposed to an opaque identifier.
+  // This field must be present if room_id is present.
+  string room_name = 4;
+
+  // Applicable only for Dining: The party size which can be accommodated
+  // during this time slot. A restaurant can be associated with multiple Slots
+  // for the same time, each specifying a different party_size, if for instance
+  // 2, 3, or 4 people can be seated with a reservation.
+  int32 party_size = 5;
+}
+
+message TimeRange {
+  int64 begin_sec = 1;
+  int64 end_sec = 2;
+}
\ No newline at end of file
diff --git a/testclient/main.go b/testclient/main.go
new file mode 100644
index 0000000..c3f5537
--- /dev/null
+++ b/testclient/main.go
@@ -0,0 +1,314 @@
+/*
+Copyright 2017 Google Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+	"time"
+
+	"github.com/maps-booking/api"
+	"github.com/maps-booking/utils"
+	"golang.org/x/net/context"
+	"google.golang.org/grpc"
+
+	mpb "github.com/maps-booking/bookingservice"
+	fpb "github.com/maps-booking/feeds"
+)
+
+const logFile = "grpc_test_client_log_"
+
+var (
+	serverAddr       = flag.String("server_addr", "example.com:80", "Your grpc server's address in the format of host:port")
+	rpcTimeout       = flag.Duration("rpc_timeout", 30*time.Second, "Number of seconds to wait before abandoning request")
+	testSlots        = flag.Int("num_test_slots", 10, "Maximum number of slots to test from availability_feed. Slots will be selected randomly")
+	allFlows         = flag.Bool("all_tests", false, "Whether to test all endpoints.")
+	healthFlow       = flag.Bool("health_check_test", false, "Whether to test the Health endpoint.")
+	checkFlow        = flag.Bool("check_availability_test", false, "Whether to test the CheckAvailability endpoint.")
+	bookFlow         = flag.Bool("booking_test", false, "Whether to test the CreateBooking endpoint.")
+	listFlow         = flag.Bool("list_bookings_test", false, "Whether to test the ListBookings endpoint")
+	statusFlow       = flag.Bool("booking_status_test", false, "Whether to test the GetBookingStatus endpoint.")
+	rescheduleFlow   = flag.Bool("rescheduling_test", false, "Whether to test the UpdateBooking endpoint.")
+	availabilityFeed = flag.String("availability_feed", "", "Absolute path to availablity feed required for all tests except health. Feeds can be in either json or pb3 format")
+	outputDir        = flag.String("output_dir", "", "Absolute path of dir to dump log file.")
+)
+
+type counters struct {
+	TotalSlotsProcessed      int
+	HealthCheckSuccess       bool
+	CheckAvailabilitySuccess int
+	CheckAvailabilityErrors  int
+	CreateBookingSuccess     int
+	CreateBookingErrors      int
+	ListBookingsSuccess      bool
+	GetBookingStatusSuccess  int
+	GetBookingStatusErrors   int
+	CancelBookingsSuccess    int
+	CancelBookingsErrors     int
+	ReschedulingSuccess      bool
+}
+
+// GenerateBookings creates bookings from an availability feed.
+func GenerateBookings(ctx context.Context, av []*fpb.Availability, stats *counters, c mpb.BookingServiceClient) api.Bookings {
+	log.Println("no previous bookings to use, acquiring new inventory")
+	utils.LogFlow("Generate Fresh Inventory", "Start")
+	defer utils.LogFlow("Generate Fresh Inventory", "End")
+
+	var out api.Bookings
+	totalSlots := len(av)
+	for i, a := range av {
+		if err := api.CheckAvailability(ctx, a, c); err != nil {
+			log.Printf("%s. skipping slot %d/%d", err.Error(), i, totalSlots)
+			stats.CheckAvailabilityErrors++
+			continue
+		}
+		stats.CheckAvailabilitySuccess++
+
+		booking, err := api.CreateBooking(ctx, a, c)
+		if err != nil {
+			log.Printf("%s. skipping slot %d/%d", err.Error(), i, totalSlots)
+			stats.CreateBookingErrors++
+			continue
+		}
+		out = append(out, booking)
+		stats.CreateBookingSuccess++
+	}
+	return out
+}
+
+func createLogFile() (*os.File, error) {
+	var err error
+	outPath := *outputDir
+	if outPath == "" {
+		outPath, err = os.Getwd()
+		if err != nil {
+			return nil, err
+		}
+	}
+	outFile := filepath.Join(outPath, fmt.Sprintf("%s%s", logFile, time.Now().UTC().Format(time.RFC3339)))
+
+	return os.Create(outFile)
+}
+
+func setTimeout(ctx context.Context) context.Context {
+	tCtx, _ := context.WithTimeout(ctx, *rpcTimeout)
+	return tCtx
+}
+
+func logStats(stats counters) {
+	log.Println("\n************* Begin Stats *************\n")
+	var totalErrors int
+	if *healthFlow || *allFlows {
+		if stats.HealthCheckSuccess {
+			log.Println("HealthCheck Succeeded")
+		} else {
+			totalErrors++
+			log.Println("HealthCheck Failed")
+		}
+	}
+	if *checkFlow || *allFlows {
+		totalErrors += stats.CheckAvailabilityErrors
+		log.Printf("CheckAvailability Errors: %d/%d", stats.CheckAvailabilityErrors, stats.CheckAvailabilityErrors+stats.CheckAvailabilitySuccess)
+	}
+	if *bookFlow || *allFlows {
+		totalErrors += stats.CreateBookingErrors
+		log.Printf("CreateBooking Errors: %d/%d", stats.CreateBookingErrors, stats.CreateBookingErrors+stats.CreateBookingSuccess)
+	}
+	if *listFlow || *allFlows {
+		if stats.ListBookingsSuccess {
+			log.Println("ListBookings Succeeded")
+		} else {
+			totalErrors++
+			log.Println("ListBookings Failed")
+		}
+	}
+	if *statusFlow || *allFlows {
+		totalErrors += stats.GetBookingStatusErrors
+		log.Printf("GetBookingStatus Errors: %d/%d", stats.GetBookingStatusErrors, stats.GetBookingStatusErrors+stats.GetBookingStatusSuccess)
+	}
+	if *rescheduleFlow || *allFlows {
+		if stats.ReschedulingSuccess {
+			log.Println("Rescheduling Succeeded")
+		} else {
+			totalErrors++
+			log.Println("Rescheduling Failed")
+		}
+	}
+
+	log.Println("\n\n\n")
+	if totalErrors == 0 {
+		log.Println("All Tests Pass!")
+	} else {
+		log.Printf("Found %d Errors", totalErrors)
+	}
+
+	log.Println("\n************* End Stats *************\n")
+	os.Exit(0)
+}
+
+func main() {
+	flag.Parse()
+	var stats counters
+
+	// Set up logging before continuing with flows
+	f, err := createLogFile()
+	if err != nil {
+		log.Fatalf("Failed to create log file %v", err)
+	}
+	defer f.Close()
+	log.SetOutput(f)
+
+	opts := append([]grpc.DialOption{}, grpc.WithInsecure())
+	conn, err := grpc.Dial(*serverAddr, opts...)
+	if err != nil {
+		log.Fatalf("fail to dial: %v", err)
+	}
+	defer conn.Close()
+	client := mpb.NewBookingServiceClient(conn)
+
+	ctx := context.Background()
+
+	// HealthCheck Flow
+	if *healthFlow || *allFlows {
+		stats.HealthCheckSuccess = true
+		if err = api.HealthCheck(setTimeout(ctx), conn); err != nil {
+			stats.HealthCheckSuccess = false
+			log.Println(err.Error())
+		}
+		if !*allFlows && !*checkFlow && !*bookFlow &&
+			!*listFlow && !*statusFlow && !*rescheduleFlow {
+			logStats(stats)
+		}
+	}
+
+	// Build availablility records.
+	if *availabilityFeed == "" {
+		log.Fatal("please set availability_feed flag if you wish to test additional flows")
+	}
+	av, err := utils.AvailabilityFrom(*availabilityFeed, *testSlots)
+	if err != nil {
+		log.Fatal(err.Error())
+	}
+	stats.TotalSlotsProcessed += len(av)
+
+	// AvailabilityCheck Flow
+	if *checkFlow || *allFlows {
+		utils.LogFlow("Availability Check", "Start")
+		totalSlots := len(av)
+
+		j := 0
+		for i, a := range av {
+			if err = api.CheckAvailability(setTimeout(ctx), a, client); err != nil {
+				log.Printf("%s. skipping slot %d/%d", err.Error(), i, totalSlots)
+				stats.CheckAvailabilityErrors++
+				continue
+			}
+			stats.CheckAvailabilitySuccess++
+			av[j] = a
+			j++
+		}
+		av = av[:j]
+		utils.LogFlow("Availability Check", "End")
+	}
+
+	// CreateBooking Flow.
+	var b []*mpb.Booking
+	if *bookFlow || *allFlows {
+		utils.LogFlow("Booking", "Start")
+		totalSlots := len(av)
+		for i, a := range av {
+			booking, err := api.CreateBooking(setTimeout(ctx), a, client)
+			if err != nil {
+				log.Printf("%s. skipping slot %d/%d", err.Error(), i, totalSlots)
+				stats.CreateBookingErrors++
+				continue
+			}
+			b = append(b, booking)
+			stats.CreateBookingSuccess++
+		}
+		utils.LogFlow("Booking", "End")
+	}
+
+	// ListBookings Flow
+	if *listFlow || *allFlows {
+		if len(b) == 0 {
+			b = GenerateBookings(setTimeout(ctx), av, &stats, client)
+		}
+		utils.LogFlow("List Bookings", "Start")
+		b, err = api.ListBookings(setTimeout(ctx), b, client)
+		stats.ListBookingsSuccess = true
+		if err != nil {
+			stats.ListBookingsSuccess = false
+			log.Println(err.Error())
+		}
+		utils.LogFlow("List Bookings", "End")
+	}
+
+	// GetBookingStatus Flow
+	if *statusFlow || *allFlows {
+		if len(b) == 0 {
+			b = GenerateBookings(setTimeout(ctx), av, &stats, client)
+		}
+
+		utils.LogFlow("BookingStatus", "Start")
+		totalBookings := len(b)
+
+		j := 0
+		for i, booking := range b {
+			if err = api.GetBookingStatus(setTimeout(ctx), booking, client); err != nil {
+				log.Printf("%s. abandoning booking %d/%d", err.Error(), i, totalBookings)
+				stats.GetBookingStatusErrors++
+				continue
+			}
+			stats.GetBookingStatusSuccess++
+			b[j] = booking
+			j++
+		}
+		b = b[:j]
+		utils.LogFlow("BookingStatus", "End")
+	}
+
+	// CancelBooking Flow
+	if len(b) > 0 {
+		utils.LogFlow("Cancel Booking", "Start")
+		for i, booking := range b {
+			if err = api.CancelBooking(setTimeout(ctx), booking, client); err != nil {
+				log.Printf("%s. abandoning booking %d/%d", err.Error(), i, len(b))
+				stats.CancelBookingsErrors++
+				continue
+			}
+			stats.CancelBookingsSuccess++
+		}
+		utils.LogFlow("Cancel Booking", "End")
+	}
+
+	// Rescheduling is nuanced and can be isolated
+	// from the rest of the tests.
+	if *rescheduleFlow || *allFlows {
+		utils.LogFlow("Rescheduling", "Start")
+		stats.ReschedulingSuccess = true
+		if err = api.Rescheduling(setTimeout(ctx), av, client); err != nil {
+			log.Println(err.Error())
+			stats.ReschedulingSuccess = false
+		}
+		utils.LogFlow("Rescheduling", "End")
+	}
+
+	logStats(stats)
+}
diff --git a/utils/utils.go b/utils/utils.go
new file mode 100644
index 0000000..270b539
--- /dev/null
+++ b/utils/utils.go
@@ -0,0 +1,158 @@
+/*
+Copyright 2017 Google Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Package utils contains common BookingService based helper functions.
+package utils
+
+import (
+	"crypto/md5"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"math/rand"
+	"path"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/golang/protobuf/jsonpb"
+	"github.com/golang/protobuf/proto"
+	"github.com/golang/protobuf/ptypes"
+	"github.com/google/go-cmp/cmp"
+
+	mpb "github.com/maps-booking/bookingservice"
+	fpb "github.com/maps-booking/feeds"
+)
+
+// SlotKey is a struct representing a unique service.
+type SlotKey struct {
+	MerchantID string
+	ServiceID  string
+	StaffID    string
+	RoomID     string
+}
+
+// LogFlow is a convenience function for logging common flows..
+func LogFlow(f string, status string) {
+	log.Println(strings.Join([]string{"\n##########\n", status, f, "Flow", "\n##########"}, " "))
+}
+
+// AvailabilityFrom parses the file specified in availabilityFeed, returning a random permutation of availability data, maximum entries specified in testSlots
+func AvailabilityFrom(availabilityFeed string, testSlots int) ([]*fpb.Availability, error) {
+	LogFlow("Parse Input Feed", "Start")
+	defer LogFlow("Parse Input Feed", "End")
+
+	var feed fpb.AvailabilityFeed
+	content, err := ioutil.ReadFile(availabilityFeed)
+	if err != nil {
+		return nil, fmt.Errorf("unable to read input file: %v", err)
+	}
+	if path.Ext(availabilityFeed) == ".json" {
+		if err := jsonpb.UnmarshalString(string(content), &feed); err != nil {
+			return nil, fmt.Errorf("unable to parse feed as json: %v", err)
+		}
+	}
+	if path.Ext(availabilityFeed) == ".pb3" {
+		if err := proto.Unmarshal(content, &feed); err != nil {
+			return nil, fmt.Errorf("unable to parse feed as pb3: %v", err)
+		}
+	}
+
+	var finalAvailability []*fpb.Availability
+	var rawAvailability []*fpb.Availability
+	for _, sa := range feed.GetServiceAvailability() {
+		rawAvailability = append(rawAvailability, sa.GetAvailability()...)
+	}
+	if len(rawAvailability) == 0 || testSlots == 0 {
+		return finalAvailability, errors.New("no valid availability in feed, exiting workflows")
+	}
+	if len(rawAvailability) <= testSlots {
+		finalAvailability = rawAvailability
+	} else {
+		nums := rand.Perm(len(rawAvailability))[0:testSlots]
+		for _, n := range nums {
+			finalAvailability = append(finalAvailability, rawAvailability[n])
+		}
+	}
+	log.Printf("Selected %d slots out of a possible %d", len(finalAvailability), len(rawAvailability))
+	return finalAvailability, nil
+}
+
+// ValidateBooking performs granular comparisons between all got and want Bookings.
+func ValidateBooking(got *mpb.Booking, want *mpb.Booking) error {
+	if got.GetBookingId() == "" {
+		return errors.New("booking_id is empty")
+	}
+	if diff := cmp.Diff(got.GetSlot(), want.GetSlot(), cmp.Comparer(proto.Equal)); diff != "" {
+		return fmt.Errorf("slots differ (-got +want)\n%s", diff)
+	}
+	// UserId is the only required field for the partner to return.
+	if diff := cmp.Diff(got.GetUserInformation().GetUserId(), want.GetUserInformation().GetUserId()); diff != "" {
+		return fmt.Errorf("users differ (-got +want)\n%s", diff)
+	}
+	if diff := cmp.Diff(got.GetPaymentInformation(), want.GetPaymentInformation(), cmp.Comparer(proto.Equal)); diff != "" {
+		return fmt.Errorf("payment information differs (-got +want)\n%s", diff)
+	}
+	if diff := cmp.Diff(got.GetStatus(), mpb.BookingStatus_CONFIRMED); diff != "" {
+		return fmt.Errorf("status differs (-got +want)\n%s", diff)
+	}
+	return nil
+}
+
+// BuildIdempotencyToken creates a unique token based on the slot and user attempting to book the slot.
+func BuildIdempotencyToken(a *fpb.Availability, u string) string {
+	r := a.GetResources()
+	parts := []string{a.GetMerchantId(), a.GetServiceId(), strconv.FormatInt(a.GetStartSec(), 10), strconv.FormatInt(a.GetDurationSec(), 10), r.GetStaffId(), r.GetRoomId(), u}
+	key := strings.Join(parts, "")
+	return fmt.Sprintf("%x", md5.Sum([]byte(key)))
+}
+
+// BuildSlotFrom creates a bookingservice slot from an feed availability record.
+func BuildSlotFrom(a *fpb.Availability) (*mpb.Slot, error) {
+	startTime, err := ptypes.TimestampProto(time.Unix(a.GetStartSec(), 0))
+	if err != nil {
+		return nil, err
+	}
+	r := a.GetResources()
+	return &mpb.Slot{
+		MerchantId:      a.GetMerchantId(),
+		ServiceId:       a.GetServiceId(),
+		StartTime:       startTime,
+		Duration:        ptypes.DurationProto(time.Duration(a.GetDurationSec()) * time.Second),
+		AvailabilityTag: a.GetAvailabilityTag(),
+		Resources: &mpb.Resources{
+			StaffId:   r.GetStaffId(),
+			RoomId:    r.GetRoomId(),
+			PartySize: r.GetPartySize(),
+		},
+	}, nil
+}
+
+// BuildMerchantServiceMap creates a key value pair of unique services to all of their availability slots.
+func BuildMerchantServiceMap(av []*fpb.Availability) map[SlotKey][]*fpb.Availability {
+	m := make(map[SlotKey][]*fpb.Availability)
+	for _, a := range av {
+		key := SlotKey{
+			MerchantID: a.GetMerchantId(),
+			ServiceID:  a.GetServiceId(),
+			StaffID:    a.GetResources().GetStaffId(),
+			RoomID:     a.GetResources().GetRoomId(),
+		}
+		m[key] = append(m[key], a)
+	}
+	return m
+}