Hi, I am Rebecca Taylor.
Hello. How can I help you today?
Please help me in booking a flight ticket from DTW to IAD.
Sure, I am glad to help with that. Can I know your travelling dates?
I want to start my journey on Mar 22nd and return on Mar 24th.
Do you have any other specifications?
Yes, I want to depart at afternoon. I want a connecting flight.
Thank you for your information, there is a flight 1018 with a 1 drop off in Southwest airlines and the fare of the ticket is 100. Is it ok for you to book the ticket?
May I know the depart timings?
The flight  is departing at 16:00 PM and returning at 6:00 AM.
Please proceed.
I have reserved your ticket in an economy class.
Thank you.
Thank you for your great service.