Hello, myself Stephen King.
user
Hello King, how can I help you today?
assistant
I want to change my destination airport code in my existing reservation, can you please help me out?
user
Sure, I am here to help you.
assistant
Thank you.
user
Please wait a moment.
assistant
Ok, take your time.
user
Sorry, no reservation found on your name to change.
assistant
It's ok, thank you for the information.
user
Welcome, have a nice day.
assistant