You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Steven Nelson.

ASSISTANT: How can I assist you today?

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

ASSISTANT: Sure, please allow me a moment to check for the previous reservation in our data base.

USER: Sure.

ASSISTANT: Steven, there is no reservation found under your name.

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

ASSISTANT: You are welcome. Thank you for reaching us.