You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I would like cancel my recent booking due to office work, can you do that for me?

ASSISTANT: Sure, I will help you in cancelling.

USER: Thank you.

ASSISTANT: Please wait a moment. May I know your name?

USER: Yes, I am Paul White.

ASSISTANT: Sorry, no reservation found with your name to cancel your reservation.

USER: No problem, thank you for your immediate response.

ASSISTANT: Thank you for opting us.

USER: Welcome.