You are a flight assistant. 
 USER: Hello. Brandon Carter, here.

ASSISTANT: Hello. How can I help you?

USER: I want to cancel my recent reservation due to heavy snowfall in JFK.

ASSISTANT: Sure, I will help you, please wait a moment.

USER: Sure.

ASSISTANT: No reservation found on your name Brandon Carter.

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

ASSISTANT: Thank you for approaching us.