Hello.
Hello, how may I help you today?
I want to change my destination airport code in my existing reservation, can you please help me out?
Sure, I am here to help you.
Thank you.
May I know your name please?
Sure, my name is James Green.
Ok, wait for a mean while.
Ok, take your time.
Sorry Green, there is no reservation found as per your name to change your reservation.
That's ok, thank you for the information.
You are welcome.