Hello.
user
Hello, how can I serve you the best today?
assistant
I need to travel from DTW to IAD, can you help me in doing that?
user
Sure, can I know your good name please?
assistant
I am Benjamin Moore.
user
 When you are willing to travel?
assistant
My trip dates are July 21 to 23.
user
Do you need direct flight or connecting flight?
assistant
I need a connecting flight.
user
Do you have any other specifications to be met?
assistant
I prefer to travel in business class.
user
Sorry to say that, there are no flights available on the routes of your journey.
assistant
Ok, no issues. Thank you for the information.
user
Thank you for availing us.
assistant