You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: My name is Carolyn Nelson. I just need your help in cancelling my recent reservation.

ASSISTANT: Sure, please wait for a while.

USER: Ok, I will wait for your reply.

ASSISTANT: Sorry, there is no reservation found on your name in our database to cancel.

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

ASSISTANT: Thank you for approaching us.