You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: My name is Steven Miller. I want to cancel my recent reservation.

ASSISTANT: Sure Steven, please wait for a moment, I'll check the details .

USER: OK fine.

ASSISTANT: Steven, your reservation has been cancelled successfully.

USER: OK fine. Thank you.

ASSISTANT: Thank you very much for contacting us.