...
Yes. If a user wants to only change a return flight, the Change Trip Assistant Exchange provides the fields for selecting a new return flight (the date/time, fare type, cabin class, and so on).
...
Yes. For users who purchase round-trip flights online (or offline if enabled) and select to change the return flights after departure, the Change Trip Assistant Exchange provides fields for changing just the return flight (the date/time, fare type, cabin class, and so on). The system will send a request using the original ticket as an exchange ticket, and maintain the original outbound flight leg to derive new return flight results. The user will be able to select from all available return flight solutions. Depending on the return flight selected, the system will follow up with another request with the applicable exchange ticket.
...