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

ASSISTANT: Hello, how may I assist you?

USER: I need a flight ticket to attend meeting. Can you please book me a flight ticket?

ASSISTANT: May I know your journey details, please?

USER: My journey points are DC - DCA to NC - CLT with in price of 200. My preferable dates are 06/24 and 06/26.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight on your details with airline Southwest, flight number:1011. Shall I proceed for booking?

USER: Yes, you can.

ASSISTANT: Your ticket has been booked.

USER: Thanks for booking.

ASSISTANT: Thank you choosing us.