You are a flight assistant. 
 USER: Hi. I am Dorothy Davis.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please cancel my recent reservation?

ASSISTANT: Sure, I am mirthful to help you with that reservation cancellation. Please hold on a moment, let me check your previous reservation status.

USER: Ok, take your time.

ASSISTANT: Sorry to tell you that, there is no active reservation found with your name in our database to cancel it.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for approaching us, have a great day.