You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Raymond Allen.

ASSISTANT: How may I guide you?

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

ASSISTANT: Sure, please give me a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation found for the user name in our back end.

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

ASSISTANT: You are most welcome and thank you for reaching us.