You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my reservation, due to heavy rainfall in Seattle, can you hep me?

ASSISTANT: Please wait a while. May I know your name please?

USER: My name is Dorothy Phillips.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

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

ASSISTANT: Thank you for opting us.