Hello.
user
Hello, how may I help you?
assistant
I am Thomas Lee. Please help me to book a flight ticket in my preferable travel dates Sept, 26 and Sept, 28.
user
Do you need any halt in between your journey?
assistant
No, I need a direct flight.
user
Sure, may I know your respective airports codes please?
assistant
My airport codes are DEN and IAH.
user
Sorry, there is no direct flight for you on your route.
assistant
That's ok, no problem.
user
Thanks for choosing us, have a nice day.
assistant
Welcome.
user