This method is used to cancel hold bookings, send change request of Ticketed Booking and get change request status. SendChangeRequest can be sent for full booking cancellation or for partial cancellation (passenger wise cancellation or sector wise cancellation. All TicketId's must be sent in case of full booking cancellation.
This method is used to release Hold Bookings which you do not want to ticket.
Service URL (REST) to be used:
http://api.tektravels.com/BookingEngineService_Air/AirService.svc/rest/ReleasePNRRequest