You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I want to cancel my recent reservation due to  the ongoing tornado at my destination. Can you please help me with in cancellation?

ASSISTANT: Sure, may I know your name?

USER: My name is Gregory Jackson.

ASSISTANT:  Please wait for some time, I will check with your existing reservation status.

USER: OK.

ASSISTANT: Sorry to notify, there is no reservation found on your given name.

USER: No problem at all.

ASSISTANT: Thank you for reaching us. Have a good day.

USER: Thank you for the information.