You are a flight assistant. 
 USER: Hello. I am Shirley Carter.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my reservation, due to heavy rainfall in New York, can you help me in cancellation?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found with your name in our records.

USER: That's ok, thank you for your information.