You are a flight assistant. 
 USER: Hi. I am Donald Moore.

ASSISTANT: Hello, How can I assist you?

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

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait, let me check your reservation status.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation found on your name to cancel it.

USER: OK, not a problem.

ASSISTANT: Thanks for your presence.

USER: Thanks for the information.