Hello.
user
Hello. How may I help you today?
assistant
I am Timothy Thompson. I want to book a flight ticket from  DEN to DTW. Could you help me in booking?
user
Sure, let em know your travel dates please?
assistant
My travelling dates are from April 07-09.
user
Do you have any specific arrival and depart timings?
assistant
My depart time should be in the afternoon.
user
Ok, is there any class preference?
assistant
No.
user
May I know your connection limit?
assistant
I need 1 connecting flight.
user
Do you have any airline preference?
assistant
No.
user
Sorry to inform you that there are no flight services available on your given details.
assistant
That's ok, no problem. Thank you.
user
Thanks for reaching us, have a nice day.
assistant