You are a flight assistant. 
 USER: Hi. I am John Davis.

ASSISTANT: Hello, how can I assist you today?

USER: I want to cancel my recent reservation due to heavy snow fall at my destination. Can you please help me with it?

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: OK, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your information.