You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Gregory Brown. I am looking to cancel my recent reservation.

ASSISTANT: Sure Brown, give me a moment.

USER: OK.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: OK. That's fine, thank you for the information.

ASSISTANT: Thank you. Have a nice day.