Hi.
user
Hello. How can I assist you now?
assistant
Can you book a flight ticket from IAH to PHL?
user
Sure, I am happy to help you with that. Can  I have your travel dates please?
assistant
My trip dates are 08/21 and 08/23.
user
Ok, please let me know your class preferences.
assistant
I prefer business class.
user
Do you have any other specifications?
assistant
I want a connecting flight.
user
Can I have your good name please?
assistant
Jack Lewis here.
user
Sorry Jack Lewis, no flight is available to you on your dates.
assistant
That's ok, thank you for checking.
user
Thank you for choosing us, have a good day.
assistant