chore: improve error message (#21112)

apps/web/public/static/locales/en/common.json

@@ -846,6 +846,7 @@
   "booking_redirect_uri": "URL of your booking page",
   "booking_cancel_redirect_uri": "URL of the page where your users can cancel their booking",
   "booking_reschedule_redirect_uri": "URL of the page where your users can reschedule their booking",
+  "booking_conflict_error": "This slot is no longer available. Please return to the previous page and select another time.",
   "open_invitations": "Open Invitations",
   "new_team": "New Team",
   "create_first_team_and_invite_others": "Create your first team and invite other users to work together.",

packages/features/bookings/lib/handleNewBooking.ts

@@ -1415,7 +1415,7 @@ async function handler(
       err.message
     );
     if (err.code === "P2002") {
-      throw new HttpError({ statusCode: 409, message: "booking_conflict" });
+      throw new HttpError({ statusCode: 409, message: ErrorCode.BookingConflict });
     }
     throw err;
   }

packages/lib/errorCodes.ts

@@ -17,4 +17,5 @@ export enum ErrorCode {
   UpdatingOauthClientError = "updating_oauth_client_error",
   CreatingOauthClientError = "creating_oauth_client_error",
   BookingTimeOutOfBounds = "booking_time_out_of_bounds_error",
+  BookingConflict = "booking_conflict_error",
 }