You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: I am Kevin Hall. I want to cancel my recent reservation due to bad weather condition, so please cancel my reservation.

ASSISTANT: Sure, I will help you with that. Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name.

USER: No problem, thank you for your help.

ASSISTANT: Thank you for visiting us.