Hi.
user
Hello, how may I assist you?
assistant
I need to book a flight ticket from IAH to DTW, can you help me in booking a flight ticket?
user
Sure, may I know your planned travel dates please?
assistant
Sure, my journey dates are Dec 31 and Jan 2.
user
Would you like to travel in a connecting flight or a direct flight?
assistant
I prefer maximum one connection.
user
May I know your good name please?
assistant
Sure, Patrick Collins here.
user
We found United airline with economy class and flight number is 1018 with arrival time is 20:00 hours and depart time is 3:00 hours.Shall I proceed for booking?
assistant
I would prefer return time at afternoon. And  I want to fly in a business class.
user
Please wait for a moment.
assistant
Sure.
user
Sorry, there is no flight available for your request.
assistant
Ok, no issues. Thank you for your information.
user
Thank you for reaching us.
assistant