Abstract: Systems and techniques for managing ticket changes are described. for managing changes to a purchased ticket. A married segment indicator associated with first and second married flight segments of the purchased ticket is located. It is determined whether changes to the purchased ticket affect existing bookings of the first and second married flight segments. Based on the determination, a replacement ticket is constructed to include the first and second married flight segments of the purchased ticket utilizing the existing booked inventory; otherwise, a replacement ticket is constructed using current availability information for the first and second married flight segments from the replacement ticket.

Abstract: Methods, systems, and computer program products for providing new pricing solutions to satisfy changes to a purchased ticket are described. A query for new travel includes information needed to determine a set of pricing solutions for issuing a new ticket that satisfies the new travel requirements using some value associated with an original, issued ticket. Valid fares corresponding to replacement itineraries are determined according to a determined reissue method that is valid for the replacement itineraries.

Abstract: A graphical user interface includes a first set of columns for displaying details for a first passenger group, a second set of columns for displaying details for a second passenger group and a third set of columns for displaying details for joint solution properties of a joint solution involving the first and second passenger groups.

Abstract: Pricing of a sequence of transportation units includes receiving a set of sellable-units, encoding the set of sellable-units into a context-free grammar that represents possible ways that the sellable-units can be combined to produce valid tickets and producing a ticket from the encoded set of sellable units.