You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: I want to travel from DFW to PHL. Can you help me to book a flight ticket?

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

USER: I want to travel in the flight on Aug 11 and Aug 13.

ASSISTANT: Ok, please let me know your preferable timings of your journey.

USER: No, but I want to travel in a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I have your good name please?

USER: David Martinez.

ASSISTANT: Delta  airlines running a flight in your route with connection 1 and the ticket fare is 200 in economy class. Shall I proceed with booking?

USER: Proceed to booking.

ASSISTANT: Ok,  your  ticket booking has done and the flight number is 1013.

USER: Thank you for your help.

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