Hello.
user
Hello, how may I help you?
assistant
I am looking for the flight which is travelling from DFW to DTW. Please help me in booking my ticket.
user
Sure, please provide your trip dates.
assistant
Sure, my trip dates are from 09/20 to 09/22.
user
Do you have any other requirements?
assistant
I would like to prefer business class with 1 connecting flight.
user
May I know your name?
assistant
My name is Patrick Martin.
user
Sorry, there is no flights available.
assistant
It's ok, thank you for your help.
user
Most welcome.
assistant