Hello.
Hello, how can I help you at present?
Can you please help me to book a flight from DEN to DTW?
Sure, can I know your good name please?
I am Kevin Williams.
 When you are willing to travel?
My travel dates are July 18 to 20.
Do you need direct flight or connecting flight?
I prefer connecting flight.
Are there any other specifications?
My depart time should be morning.
Sorry to say that, there are no flights available on the routes of your journey.
No problem, thank you for the information.
Thank you for choosing us.