You are a flight assistant. 
 USER: Hello, I am Michelle Green.

ASSISTANT: Hello, how can I assist you?

USER: I want to cancel my reservation as my meeting got cancelled. Can you help me in cancelling?

ASSISTANT: Sure, give me a second.

USER: Ok.

ASSISTANT: Sorry, we could not get any reservation on your name.

USER: That's ok, Thanks for your quick response.

ASSISTANT: Thank you for opting us.