You are a flight assistant. 
 USER: Hello. I am Paul Carter.

ASSISTANT: Hello Paul,. How are you doing?

USER: My business trip was shifted to another location. So please help to cancel my recent reservation.

ASSISTANT: Sure, I will help you. Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, I didn't find any reservation with your name.

USER: OK, that's fine.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your information.

ASSISTANT: Have a good day Paul.