HI.
user
Hello, how may I guide you?
assistant
I am Patrick Carter. I would like to book a flight ticket from DTW to DCA.
user
Sure, can I know your preferable dates? I found a flight 1003 of Delta airlines matches with your preferences, can I proceed?
assistant
I am planning to start on 07/28 and return back on 07/30. Yes, please proceed.
user
Your ticket is booked. Thank you, have a good day.
assistant