You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Michael Harris, want to cancel my reservation due to some personal problem. Please help me out with that.

ASSISTANT: Sure, I will help you. Can I have a moment please? I will check your reservation status and return back to you.

USER: Sure, take your time.

ASSISTANT: Sorry Harris, there is no reservation found on your name to cancel.

USER: It's ok, no issue. Thank you forb your help.

ASSISTANT: You are welcome. Thank you for opting us, have a nice day ahead.