You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Ronald Williams here. I would like to cancel my reservation, can you please help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please, wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, we have not found any reservation on your name in our database.

USER: That's ok, no problem. Anyway thank you for checking out.

ASSISTANT: Thank you fro reaching us, have a great day.