You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you help me booking a flight ticket from DCA to ORD?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: I will start on 05/19 and return on 05/21.

ASSISTANT: Do you need break in between your journey?

USER: I need a break in my journey.

ASSISTANT: Please let me know if you have any other specifications.

USER: I prefer for normal cost airline.

ASSISTANT: Can I have your good name please?

USER: I am Scott Mitchell.

ASSISTANT: AA airlines is providing a single connected flight with ticket fare of 600, shall I proceed for booking?

USER: Please proceed with the booking.

ASSISTANT: I have successfully booked you a business class ticket in flight-1001, have a safe journey.

USER: Thank you for reaching us.

ASSISTANT: Thank you for choosing us.