You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anthony Davis.

ASSISTANT: How can I help you at this moment?

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

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: There is no previous reservation found in your name Anthony Davis.

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

ASSISTANT: You are welcome.