You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Alexander Jackson. I just came to know that there is tsunami threat in the place which I planned to visit, so can you please cancel my reservation?

ASSISTANT: Sure Jackson, wait a moment.

USER: Ok.

ASSISTANT: Jackson, there is no reservation found for you.

USER: It's ok. Thank you for your help.

ASSISTANT: You are welcome.