Hello.
user
Hello. How can I aid you?
assistant
I want to change my reservation which I had booked on the name Christopher Green. Can I help me?
user
Sure, I will help you.
assistant
Ok, thank you.
user
Sorry, no reservation found with your name to change your reservation.
assistant
That's ok, no problem. Thank you for the information.
user
Welcome, have a safe flight.
assistant