You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name in our database to cancel.

USER: It's ok, not an issue. Anyway, thank you for your help.

ASSISTANT: Thank you for approaching us.