The CancelReservations method provides the ability to send reservation cancellation requests.
Target Audience
                  Booking Solutions
              OTA Integration
                    API Version
                        10.34
                Authentication
                        Security Credentials
                Service Action Code
                        OTA_CancelRQ
                - OTA_CancelRQ—Sends a request message to cancel a single reservation or an entire itinerary to Control Center.
- OTA_CancelRS— Returns confirmation that the reservation has been successfully cancelled, and includes a cancellation confirmation number to identify the cancellation. Warnings from business processing rules or errors are returned if the request did not succeed. When an entire itinerary was specified in the request, only the CRS Itinerary confirmation number is returned.
Sample Request
                        <OTA_CancelRQ EchoToken="12345" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.opentravel.org/OTA/2003/05">
  <POS>
    <Source>
      <RequestorId ID="10" ID_Context="Synxis">
        <CompanyName Code="WSBE" />
      </RequestorId>
    </Source>
  </POS>
  <UniqueID Type="14" ID="10107SY000837" ID_Context="CrsConfirmNumber" />
  <Verification>
    <TPA_Extensions>
      <BasicPropertyInfo HotelCode="10107" ChainCode="1234" />
    </TPA_Extensions>
  </Verification>
  <TPA_Extensions>
    <WrittenConfInst>
      <SupplementalData Name="EmailTemplateCode" />
    </WrittenConfInst>
  </TPA_Extensions>
</OTA_CancelRQ>Sample Response
                        <OTA_CancelRS EchoToken="12345" TimeStamp="2014-01-25T11:05:41Z" ResResponseType="Cancelled" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <Success />
  <UniqueID Type="14" ID="10107SY000889" ID_Context="CrsConfirmNumber" />
  <UniqueID Type="13" ID="10107SY000889" ID_Context="ChannelRefNumber" />
  <CancelInfoRS>
    <UniqueID Type="15" ID="10107SY000890X" ID_Context="CrsCancelConfirmationNumber" />
  </CancelInfoRS>
</OTA_CancelRS>