Hi.
user
Hello. How may I aid you?
assistant
Actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation.
user
Sure, may I know your name?
assistant
William Evans is my name.
user
Please wait for a moment.
assistant
Ok.
user
Sorry to say, no reservation found on your name.
assistant
That's ok, thank you.
user
Thank you for reaching us.
assistant