.. _Cancel-booking:

**************
Cancel booking
**************

.. raw:: html

   <h3>Workflow description</h3>

To cancel an existing booking of an airline, the client must send the IATA_OrderCancelRQ message including the "OrderID" of the booking.

If the "OrderID" is unknown, the client can search for an existing booking (see :ref:`Search-bookings` for more details).

The API will return an IATA_OrderCancelRS indicating the result of the operation. In case there was an error, the response will contain an "Error"-element. Otherwise, the response will only contain the order ID.

.. raw:: html

   <h3>Message Flow</h3>

.. image:: ../images/Cancel_booking.png