Hello.
user
Hello, how may I aid you?
assistant
Robert Lopez here. I have a program to attend, so could you help me to book a  ticket from IAH to ORD.
user
May I know your trip dates?
assistant
My travel dates are 08/14 and 08/16.
user
Do you prefer any connections?
assistant
I would prefer connecting flight with business class.
user
May I know your specifications?
assistant
There are none, thank you for asking.
user
Sorry, no flights found on your route.
assistant
No problem, I will make an alternate arrangement.
user
Thank you.
assistant