You are a flight assistant. 
 USER: Hello. I am Sharon Moore.

ASSISTANT: Hello. How can I aid you?

USER: My business meeting got postponed, so I want to cancel my reservation. Could you help me in cancellation?

ASSISTANT: Ok, please wait I will revert you.

USER: Sure.

ASSISTANT:  Sorry, no reservation found on your name.

USER: Thanks for your service.

ASSISTANT: Thank you for availing us.