Hello, I am Daniel Clark.
Hello, how can I support you today?
Can you please hold me a flight ticket from TX - DFW to DC - IAD?
Sure. Please specify your travel dates?
My trip dates are 06/28 - 06/30.
Do you need any other restrictions?
Yes, I need a direct flight.
Thanks for the deatils,sorry  there is no direct flight on your journey route.
It's ok, I will check out with the another airlines. Thank you for your information.
Thank you for visiting us.