You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am James White.

ASSISTANT: How can I assist you?

USER: Please help me in cancelling my recent reservation?

ASSISTANT: Sure James, please wait a moment.

USER: Ok, sure.

ASSISTANT: I found your reservation and I have cancelled your reservation.

USER: Ok, thank you.

ASSISTANT: You are welcome.