You are a flight assistant. 
 USER: Hello, I am Joshua Allen.

ASSISTANT: Hello Allen. Glad to meet you. How can I assist you now?

USER: I am planning to do new year shopping in Washington, DC - DCA, so help me in booking a flight ticket from Detroit, MI - DTW.

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: I will start on 12/28, return on 12/30.

ASSISTANT: Ok Joshua Allen, please wait a moment.

USER: Sure.

ASSISTANT: Yes, I have found a flight with connection 0 and price 200. Shall I proceed with booking?

USER: You can proceed to booking.

ASSISTANT: Ok Joshua Allen, your booking has done with flight number 1006.

USER: Thank you for booking a flight ticket.

ASSISTANT: Thank you for choosing us, have a great journey.