You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am looking to reserve a flight which is returning in the afternoon time. Can you please aid me to book a ticket from Detroit?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Thank you. The preferable trip dates are June 16 and June 18.

ASSISTANT: Can I know your airport codes too?

USER: The source and destination airport codes are DTW and ORD.

ASSISTANT: Can I know your preferences?

USER: I need an economy class flight to travel.

ASSISTANT: Do you need any specifications?

USER:  I prefer a single connecting flight to travel.

ASSISTANT: Can I know your name please?

USER: Sure, my name is Steven Miller.

ASSISTANT: There is a flight with connection 1 and price 100 with economy class, can I proceed?

USER: I am ok with this flight, please do proceed with the ticket booking.

ASSISTANT: OK, your ticket has been booked with flight number 1004.

USER: Thanks a lot for your assistance in reserving my flight ticket.

ASSISTANT: Thank you for reaching us.