You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what help that you are seeking from my side?

USER: Unexpectedly, the important meeting was planned in my planned dates. So please help me to cancel reservation.

ASSISTANT: Sure, may I know your good name for searching?

USER: My existing reservation is booked under the name Virginia Parker.

ASSISTANT: Thank you for your information, in our data base there is no ticket reserved under your name to cancel, I think it is not booked properly in previous. Thank you for approaching us, have a great day.

USER: It's ok, thank you for checking.

ASSISTANT: Our pleasure to help you.