You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER:  I am Jonathan Gonzalez. I want to cancel my recent reservation due to ongoing tornado at my destination place. Can you help me in cancelling?

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there is no reservation on your name.

USER: Thank you.

ASSISTANT: Thank you.