You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I just want to cancel my recent reservation, due to heavy snowfall at my destination. Can you please assist me with cancellation?

ASSISTANT: Sure, I can help you and may I know your name for checking purpose?

USER: Sure, my name is Kevin Hall.

ASSISTANT: Thank you for your information and there is no reservation found for the user name in our data base to cancel your booking.

USER: Ok, thanks for your information.

ASSISTANT: You are most welcome and have a nice day.