You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you for today?

USER: I want to cancel my recent reservation due to heavy snowfall in my hometown. Can you help me?

ASSISTANT: Oh! that's very sad to here. Sure, I will help you. Could you please provide your name to check your previous reservation status?

USER: Sure, my name is Elizabeth Roberts.

ASSISTANT: Please hold on a moment to check.

USER: Ok.

ASSISTANT: I am sorry, no reservation found on your name Elizabeth Roberts.

USER: It's ok, not an issue.

ASSISTANT: Thank you for using our service.

USER: Thank you for checking.