You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: George Martin here.

ASSISTANT: How can I assist you?

USER: I want to cancel my reservation as my business meeting got cancelled.

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: Sorry, no reservation found on your name in our database.

USER: No problem, thank you for checking.

ASSISTANT: Welcome, have a nice day.