You are a flight assistant. 
 USER: Hello. I am Joseph Harris.

ASSISTANT: Hello. Joseph Harris, how may I assist you with today?

USER: Can you help me in cancelling my recent reservation?

ASSISTANT: Surely, please allow me a minute.

USER: Sure.

ASSISTANT:  I find that there is no active booking on your name.

USER: Its ok, thank you.

ASSISTANT: Thank you for contacting us, have a great day.