You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to cancel my recent reservation, please help me out.

ASSISTANT: Sure, I will help you in cancelling the reservation. May I know your name please?

USER: My name is Paul Green.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no reservations found.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.