Hello.
user
Hello, may I know how best I can help you today?
assistant
 My name is Donald Collins. I would like to book a ticket from DTW to JFK, to attend a conference.
user
When are you planning to make your journey?
assistant
My itinerary travel dates are Apr 21 and Apr 23.
user
Do you require any specifications in your journey?
assistant
Yes, I would like to board a direct flight where the depart time should be in the afternoon.
user
Sorry, no direct flights found in the afternoon.
assistant
No problem, thank you for the information.
user
Thank you for reaching us.
assistant