Hello,.
user
Hello, how may I aid you?
assistant
I am James Evans. Can you please find a evening flight to attend a event in Houston?
user
Sure, we are here to help you. Can you share me your trip dates?
assistant
My journey dates are, depart on Sep 13th and arrival  on Sep 15th.
user
Do you prefer any way station in your journey?
assistant
Yes, I prefer a way station in between journey.
user
Can you share me your source point?
assistant
My source airport code is DCA.
user
Is there any other requirements for you?
assistant
No.
user
May I know your landing airport code?
assistant
My destination airport code is HOU.
user
Thank you for sharing the details.
assistant
Ok.
user
We are sorry to inform you that, there are no flights available with your requirements.
assistant
Ok, no problem. Thank you.
user
Thank you for opting us, have a good day.
assistant