You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Joseph Green.

ASSISTANT: Nice to meet you Green.

USER: 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, hold on for a moment please.

USER: Ok.

ASSISTANT: Sorry to say this Green, we could not find a flight under your name.

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

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