Identifes the primary language preference for the message. The human language is identified by ISO 639 codes.
The Availability Response message contains Train Availability for a station pair on a specific date. A set of OriginDestinationOptions is returned, each of which contains one or more (connecting) trains that serve the city pair. The ResponseType attribute in the Request message specifies whether the response is restricted to Schedules or Fares or full Availability. If the ResponseType is 'Fares', the response will comprise a list of all fares from the Origin to the Destination. If the ResponseType is 'Schedules', the response will comprise a list of all train departures from the Origin to the Destination. If the ResponseType is 'Availability', the response will comprise a list of available train departures from the Origin to the Destination and, where the responding system has this facility, valid fares available on those departures.
Indicates whether the response should be restricted to Fares or Schedules or provide Availability including, where applicable, Fares.
For all OTA versioned messages, the version of the message is indicated by a decimal value.
Identifies the alternate language for a customer or message. The human language is identified by ISO 639 codes.
Used to indicate whether the request is for the Test or Production system.
This indicates where this message falls within a sequence of messages.
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).
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).
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.
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.
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.