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

ASSISTANT: Hello, what can I do for your now?

USER: I am planning to go for a small adventurous tour to DC after dark in Washington. Can you book a ticket for me under 500 price range?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are 02/18 and 02/20.

ASSISTANT: Can you please specify me your airport points?

USER: Detroit, MI - DTW is my origin airport and DCA is my destination airport.

ASSISTANT: Do you need any break in between journey?

USER: Yes, I need one break in between my journey.

ASSISTANT: There is a flight available in AA airline of flight number 1006 and fare is 200. Shall I proceed for booking?

USER: Proceed please.

ASSISTANT: Your ticket has been processed.

USER: Thank you.

ASSISTANT: Thanks for reaching us, have a nice journey.