You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Lisa Lee. I have planned a surprise party but it was cancelled. So, can you please cancel my recent reservation?

ASSISTANT: Sure, I will help you with the flight ticket cancellation. I have found your flight reservation and I have cancelled it.

USER: Ok, thank you for accepting my request and thank you for cancelling my reservation.

ASSISTANT: Thank you.