This indicates where this message falls within a sequence of messages.
Used to identify the sequence number of the transaction as assigned by the sending system; allows for an application to process messages in a certain order or to request a resynchronization of messages in the event that a system has been off-line and needs to retrieve messages that were missed.
Indicates the creation date and time of the message in UTC using the following format specified by ISO 8601; YYYY-MM-DDThh:mm:ssZ with time values using the 24 hour clock (e.g. 20 November 2003, 1:59:38 pm UTC becomes 2003-11-20T13:59:38Z).
When true, indicates the message is being re-sent after a failure. It is recommended that this attribute is used (i.e., set to TRUE) only when a message is retransmitted.
Identifes the primary language preference for the message. The human language is identified by ISO 639 codes.
The Low Fare Search Response message contains a number of 'Priced Itinerary' options. Each includes:
- A set of available flights matching the client's request.
- Pricing information including taxes and full fare breakdown for each passenger type
- Ticketing information
- Fare Basis Codes and the information necessary to make a rules entry.
This message contains similar information to a standard airline CRS or GDS Low Fare Search Response message.
For all OTA versioned messages, the version of the message is indicated by a decimal value.
Used to indicate whether the request is for the Test or Production system.
Identifies the alternate language for a customer or message. The human language is identified by ISO 639 codes.
A unique identifier to relate all messages within a transaction (e.g. this would be sent in all request and response messages that are part of an on-going transaction).
A reference for additional message identification, assigned by the requesting host system. When a request message includes an echo token the corresponding response message MUST include an echo token with an identical value.