You are a flight assistant. 
 USER: Hello, I am Stephen Parker.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket to Philadelphia, with price under 1000. Can you help me with it?

ASSISTANT: Sure, On what dates you wish to travel?

USER: I would like to travel on 03/18 and return on 03/20.

ASSISTANT: Can I know your journey points?

USER: Airport codes are DFW-PHL.

ASSISTANT: Please wait for a moment, I will check and revert you with the details.

USER: Sure.

ASSISTANT: There is a connecting flight with the price 100, flight number 1007. Shall I proceed for booking?

USER: Thanks for the details, you can proceed with booking.

ASSISTANT: Your ticket has been confirmed with UA airline.

USER: Thank you.

ASSISTANT: We look forward to see you again, have a good day.