Get a single booking by ID

Fetches a single booking by its ID from Experience, Restaurant, or Hotel APIs. ## Features - **Parallel Search**: If dataType is not provided, queries all three verticals in parallel - **Direct Query**: If dataType is provided, directly queries the specified vertical for better performance - **Fallback Search**: If single dataType search returns null, automatically searches all verticals as fallback - **Unified Response**: Returns booking data in standardized format ## Path Parameters - **bookingId**: The unique identifier of the booking ## Query Parameters - **dataType** (optional): Specify the vertical to query (RESTAURANT, EXPERIENCE, HOTEL) - If provided: Queries only the specified vertical first, then falls back to all verticals if not found - If not provided: Queries all verticals in parallel until one succeeds ## Response Structure The booking object includes: - **id**: Booking ID - **dataType**: Type of booking (RESTAURANT, EXPERIENCE, HOTEL) - **data**: Raw booking data from the respective service ## Error Codes - **UNAUTHORIZED**: Authorization token is missing - **NOT_FOUND**: Booking not found in any vertical - **EXTERNAL_API_ERROR**: Error from external booking services - **SERVICE_ERROR**: Internal service error - **INTERNAL_ERROR**: Unexpected server error