Hello,. My name is James Roberts.
Hello, What Can I do for you?
I want to travel to Washington, DC - IAD from Houston, TX - HOU.
Sure, please provide me your journey days?
From Jan 5 to Jan 7.
OK, please wait I  will check and let you know the availability.
Sure.
Thank you for waiting. Sorry, they were no flights available on your specified dates.
OK, Thank you for your information.
Thank for contacting us, have a great day.