Hello. I am Andrew Lopez.
Hello, how may I serve you at this moment?
I want to book a flight ticket from Dallas DFW to Washington DCA. Can you make  a reservation for me?
Sure, we are here to help you.
Thank you.
Can you please let me know your journey dates?
Ok, my journey dates are on July 12 and return on July 14.
Ok, please wait for a while.
Sure. I want to depart in the evening time and return in the morning time.  So please check with this.
We found a Delta airlines, flight number 1000 and the fare of 100 in economy class. Your depart time is in the evening and return flight in morning time with connecting flight. Shall I proceed?
Yes, you can proceed with the ticket booking.
Ok, your ticket has been reserved.
Thank you for your help.
Thank you for choosing us.