 Baggage | Baggage information. |
| Company | Associated company information for the traveler.Identifies a company by name. |
| EMD | Optional services associated with electronic miscellaneous documents.A container for summarized electronic miscellaneous document information |
| FareInfo | Checked bag(s) included fare reference information. |
| FlightSegment | Flight segment information.Container for the flight segment data plus the MarriageGrp. |
| LoyaltyProgram | Traveler loyalty program information. |
| Offer | Merchandising offers associated with the fare or traveler.A choice between specifying summary, priced or traveler purchased ancillary offers. |
| PNR | PNR information for the traveler. |
 POS | Point of Sale. |
| PricingInfo | Pricing information including ticket information, optional charges, restrictions, negotiated fares, private fares and original issuer. |
| ProcessingInfo | Message level processing directives. |
| ServiceFamily | Service family information used to filter response results.Detailed information about an ancillary item component, including name, descriptions, pricing and multimedia. |
| TravelerType | Traveler type and quantity information. |
| AltLangID | The alternate language for a customer or message encoded as ISO 639-3. |
| CorrelationID | Allows end-to-end correlation of log messages with the corresponding Web service message throughout the processing of the Web service message. |
| EchoToken | A reference for additional message identification, assigned by the requesting host system. |
| PrimaryLangID | The primary language preference for the message encoded as ISO 639-3. |
| RetransmissionIndicator | When true, indicates the message is being re-sent after a failure. |
| SequenceNmbr | The sequence number of the transaction assigned by the sending system for ordered message processing or message resynchronization. |
| Target | Test or Production target system indicator. |
| TargetName | The name of the Test or Production system. |
| TimeStamp | ISO 8601 encoded timestamp indicating the creation date and time of the message. |
| TransactionIdentifier | 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). |
| TransactionStatusCode | This indicates where this message falls within a sequence of messages. |
| Version | The OpenTravel message version indicated by a decimal value. |