diff --git a/server/routers/booking/output.ts b/server/routers/booking/output.ts
index f3e343d1e..442fb5810 100644
--- a/server/routers/booking/output.ts
+++ b/server/routers/booking/output.ts
@@ -29,9 +29,9 @@ export const createBookingSchema = z
         errors: z
           .array(
             z.object({
-              confirmationNumber: z.string(),
+              confirmationNumber: z.string().nullable().optional(),
               errorCode: z.string(),
-              description: z.string(),
+              description: z.string().nullable().optional(),
               meta: z
                 .record(z.string(), z.union([z.string(), z.number()]))
                 .nullable()