You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help that I can assist you?

USER: I am trying to reserve a flight ticket from Detroit, can you please find a flight to reach Atlanta?

ASSISTANT: Sure, I can help you with flight ticket  booking and can you please mention your journey dates?

USER: Thank you for accepting my request. My preferred journey dates are Jan 20 and Jan 22.

ASSISTANT: Can I know your preferable airport codes ?

USER: The preferable airport codes are DTW and ATL.

ASSISTANT: Can I know your name please?

USER: My name is Joseph White.

ASSISTANT: Do you have any other preferences?

USER: I need a direct flight  which is departing in the afternoon time.

ASSISTANT: Please allow me a moment.

USER: Ok, take your time.

ASSISTANT:  I found a flight with a fare of 100 and there is a direct flight in your journey and the flight number is 1009 in Delta airlines, shall I proceed with ticket booking?

USER: I am ok with this flight, please go ahead and reserve my flight ticket.

ASSISTANT: Your flight ticket booking is confirmed on your travel dates.

USER: Thank you for your help.

ASSISTANT: You are most welcome and have a happy journey.