You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Frank Walker.

ASSISTANT: How may I assist you?

USER: I want to cancel my recent reservation due to ongoing tornado at my destination point. Can you please assist me?

ASSISTANT: Frank Walker, please be on hold for a moment till I check with availability for you.

USER: Sure.

ASSISTANT: Sorry to tell you, there are no flight reservation available on your name. Thank you for approaching our services.

USER: Ok, no issues. Thank you.

ASSISTANT: Have a nice day.