You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Brian Baker.

ASSISTANT: How may I guide you today?

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

ASSISTANT: Sure, I will help you with that. I am sorry to say that there is no flight found under your details.

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

ASSISTANT: Thank you for contacting us.