Hello.
user
Hello, how may I help you today?
assistant
I am William Anderson. Can you please  book a flight ticket from DTW to CLT?
user
Sure, may I know your planned trip dates?
assistant
Sure, I need to travel on dates  of Apr 28 and Apr 30.
user
Do you have any connection limit?
assistant
I am ok with any connections except two.
user
May I know your arrival and depart timings?
assistant
I would like to depart in the evening time.
user
Which class do you prefer either economy or business?
assistant
Actually, I am ok with any class to travel.
user
Do you have any specifications?
assistant
No,  I am ok with any airlines.
user
We found a connecting flight of fare 200 with airline United and number is 1020. Can I proceed?
assistant
That is fine, please proceed with booking.
user
Your ticket has been confirmed in economy class and depart time is evening.
assistant
Thank you for your help.
user
Thank you.
assistant