You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Kenneth Lee. I want to cancel my reservation, due to heavy rainfall in Seattle, can you help me?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: No reservation found on your name in my data base.

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

ASSISTANT: Welcome.