diff --git a/helpers/booking.ts b/helpers/booking.ts
index 951a804..adda804 100644
--- a/helpers/booking.ts
+++ b/helpers/booking.ts
@@ -3,7 +3,7 @@ import { BOOKING_STATUS } from '../db/enums'
 import { dateFormatBackend } from './date';
 import fetch from './fetch'
 
-function getBody(formData: BookFormData) {
+function getBody(formData: Partial<BookFormData>) {
   const body: any = {
     ...formData,
   };
@@ -44,7 +44,7 @@ export async function cancelBooking(uuid: string) {
   })
 }
 
-export async function patchBooking(uuid: string, bookingData: BookFormData) {
+export async function patchBooking(uuid: string, bookingData: Partial<BookFormData>) {
   return fetch(`/api/bookings/${uuid}`, {
     method: 'PATCH',
     body: getBody(bookingData),