| BoardingPassSeqNumber | The sequence number of the passengers boarding pass.
However, identification of a passenger based on his boarding pass may alternatively be done by comparing PassengerName, FlightLegIdentifier and OperatingCarrierPnrCode with the information read from the boarding pass 2D barcode. |
| MaskedCreditCard : CardInfo | The issuer code and masked credit card number. Can be used to identify a passenger by his credit card. A masked credit card number is not unique in the world, but is highly likely to be unique in any relevant setting.
Must be given if passenger should be identified by his credit card. |
| FrequentFlyerCard : CardInfo | The issuer code and card number of a frequent flyer card. Can be used to identify a passenger by his frequent flyer card.
Must be given if passenger should be identified by his frequent flyer card. |
| TicketNumber | Ticket number, with issuer number prefix.
Should be present. However, identification of a passenger based on his "ticket document" may alternatively be done by comparing PassengerName, FlightLegIdentifier and OperatingCarrierPnrCode with the information read from the ticket 2D barcode. |
