Hello. Charles Nelson here.
Hello, how may I guide you?
Can you help me to book a flight ticket from ORD to DTW?
Sure, can I know the dates on which you would prefer to travel?
My travelling dates are 05 Aug and 07 Aug.
I found an economy class ticket in UA airlines with normal cost of 100 and it is a direct flight. Can I book your ticket?
I need a connecting flight.
I am sorry, there are no flights available.
 Proceed with direct flight.
Your ticket is booked with flight 1001.
Thank you for helping me.
Thank you, have a good day.