Hello, myself Richard Robinson.
Hello Richard, how may I assist you today?
I want to change my destination airport code in my existing reservation, can you please help me out?
Sure, I am glad to help you with that. Please wait a moment to check your previous reservation.
Ok, take your time.
We regret to inform you that there is no reservation found on your name in our records.
It's ok, thank you for the information.
Thank you for reaching us, hope you have a great day.