You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I aid you? May I know your good name?

USER: My name is Andrew Lewis, My business meeting were cancelled, so I want to cancel my reservation.

ASSISTANT: Ok.Please wait for a while I will check let you know the details.

USER: Sure.

ASSISTANT: Sorry, we did not find any reservation on your name.

USER: Thank you, for your good service.

ASSISTANT: Thank you for reaching us. Have a great day.