Start with the ticket you actually hold
List every booked flight, the ticketing airline, the seller and whether the flights form one ticket or separate purchases. Explain exactly which journey you may not take. A new one-way search on TRIPCARRY does not change the existing booking.
Ask about the specific sequence before departure
Ask the ticketing provider whether the proposed change affects later segments, whether the ticket needs reissuing and what fare conditions or charges apply. Obtain an answer tied to your reservation. This guide does not state a universal cancellation rule or promise that a missed flight will have no effect.
Wait for a clear record of the revised journey
Check the remaining flight status and any new ticket or confirmation issued after an agreed change. Keep external accommodation or transfer changes separate. TRIPCARRY is a comparison starting point with a Korean-language interface; this English guide is not evidence of English booking support or authority to amend a ticket.