Hello.
user
Hello, how may I assist you today?
assistant
I am planning to change my destination airport code in my existing reservation, can you please help me out?
user
Sure, may I know your name for the changing process?
assistant
Sure, my name is James White.
user
Sorry as per your concern I can not amend your reservation as your reservation is not found as per our records.
assistant
It's ok, thank you.
user