Abstract: Systems and techniques for reissuing a purchased ticket are described. A first reissue method that is applicable to a reconstructed ticket is determined to be applicable to a first partial pricing solution selected from a plurality of partial pricing solutions that each includes a fare and an itinerary that partially satisfies a new travel request. The first reissue method is determined to be applicable to a second, different partial pricing solution selected from the plurality of partial pricing solutions. The first partial pricing solution and the second partial pricing solution are combined to form a larger partial pricing solution or a reissued ticket according to specifications of the first reissue method.

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.