You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Alexander Green here. I want to cancel my reservation, due to heavy rainfall in Seattle.

ASSISTANT: Ok, I can help you with that. Please allow me a moment.

USER: Ok.

ASSISTANT: Green, there is no previous reservation with your name to cancel further.

USER: That's ok, thanks for your information.

ASSISTANT: Thank you.