You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Dennis Davis.

ASSISTANT: Davis, how can I assist you?

USER: My business meeting has been cancelled. So, I would like to cancel my reservation. Can you please help me with that?

ASSISTANT: Sure, I can do that for you. I will check your reservation status and get back to you.

USER: Sure, take your time.

ASSISTANT: Davis, I have not found any reservation under your name in our database.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: You are welcome and thank you very much for choosing us.

USER: You are welcome.