Hello, myself Shirley Lopez.
Hello, how may I assist you today?
I am looking for a flight ticket to IAH from DFW, can you please help me out?
Sure, can you please mention your departure and arrival dates of your journey?
Sure, my planned travelling dates are July 13 and July 15.
Thank you, do you want any stopover in between your journey?
No, I need a direct flight.
  Sure, is there any another specifications on your trip, so that I can book a ticket as per your wish?
No, these are my main specifications.
Sorry, there is no flight found with your requirement.
It's ok, thank you for the information.
Thank you, for reaching us.