Final answer:
The question addresses procedures in airline itinerary management, specifically involving the insertion of a new flight segment after an affected one has not been rebooked. The process ensures accurate and updated travel plans and usually requires the expertise of airline or travel agency professionals.
Step-by-step explanation:
The question relates to the procedure followed after an affected flight segment has not been rebooked. Typically, in the context of airline operations and travel itinerary management, when a segment of a flight is affected due to cancellations, delays, or changes, the subsequent action involves either rebooking the passenger on an alternate flight or inserting a new segment after the affected one. Inserts of this nature are essential to ensure the itineraries are updated and accurate, reflecting the new travel plan. The procedures for inserting a new segment can vary based on the airline's policy and the systems they use for booking and itinerary management. Usually, airline or travel agency professionals are trained in using specific reservation systems, such as Amadeus, Sabre, or Galileo, to insert new segments and adjust the rest of the itinerary accordingly.