You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to cancel my reservation due to storm effect at my destination place, will you help me in this?

ASSISTANT: Sure, I am glad to help you to cancel your reservation.

USER: Thank you for accepting my request.

ASSISTANT: May I know your name?

USER: Sure, I am Joseph Martin.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: Sorry, I didn't find any reservation on your name in our database to cancel your reservation.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.