Hello, myself Matthew Walker.
user
Hello, how may I assist you?
assistant
I want to change my destination airport code in my existing reservation, can you please help me out?
user
Sure, please wait, let me check your reservation status.
assistant
Ok, take your time.
user
Sorry, I did not find any reservation under your name in our database.
assistant
It's ok, thank you for the information.
user
You are welcome and thank you for choosing us.
assistant