Hello, myself Paul Smith.
user
Hello, how may I aid you today?
assistant
I want to change my destination airport code in my existing reservation, can you please help me out?
user
Sure, please wait for a while.
assistant
Ok, take your time.
user
Sorry, we couldn't find any reservation on your name.
assistant
It's ok, thank you for the information.
user
Thank you for reaching us.
assistant