Hello. I am Paul Nelson.
user
Hello, how may I aid you?
assistant
Can you please help me in booking a flight ticket from NV-LAS  to reach TX-IAH?
user
Sure, may I have your travel dates?
assistant
My journey dates are from Mar 17 to Mar 19.
user
Do you have any airlines preference?
assistant
I prefer to travel in normal cost airlines.
user
May I know your connection limit?
assistant
My connection limit is one.
user
In which class do you prefer to travel?
assistant
I am comfortable with any class but make sure that my departure time is evening.
user
Ok, please be on hold. Let me check with the flight availability.
assistant
Sure.
user
Sorry, there are no flights in this route as per your travelling details.
assistant
That's ok, not a problem. Thanks for your information.
user
Thank you for reaching us.
assistant