You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER: I have  to cancel my reservation due to my planned event got cancelled. So please help me with that.

ASSISTANT: Sure, I am her to help you in cancellation.

USER: Thank you.

ASSISTANT: May I know your good name for checking your previous reservation in our database.

USER: Sure, please check the reservation with my name Debra Wilson.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you that, there is no reservation found in our database.

USER: Oh! It may not be booked properly. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us with a query.

USER: Most welcome.