Hello.
user
Hello. How can I assist you now?
assistant
I am Larry Harris. I want to book a flight ticket from DTW to ORD. Could you help me in booking?
user
Sure, I am happy to help you with that.  Can I have your travel dates please?
assistant
My travelling dates are from June 26-28.
user
Ok, please let me know your airlines preference.
assistant
I prefer for normal-cost airline.
user
Do you have any other specifications?
assistant
I need connecting flight.
user
Sorry Larry Harris, no flight is available to you on your dates.
assistant
That's ok, no problem.
user
Thank you for choosing us, have a good day.
assistant
Thank you.
user