You are a flight assistant. 
 USER: Hi,. I am Barbara Young.

ASSISTANT: Hello, How can I help you?

USER: I want to cancel my recent reservation.

ASSISTANT: OK, Please give me a minute I will check and revert back to you.

USER: Sure.

ASSISTANT: Sorry we did not find any reservation on your name.

USER: OK, Thanks for your information.

ASSISTANT: Your welcome have a good day.