Hello,.
user
Hello, how can I aid you today?
assistant
My name is Ryan Lee, my business trip was postponed, so I want to change my existing reservation.
user
Sure, wait for a while,I will check and inform you.
assistant
Ok sure.
user
Thank you for being patience, sorry to inform you that there is no reservation on your name.
assistant
Ok, thanks for your service.
user
Thank you for choosing us, have a good day.
assistant