You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you for today?

USER: Sarah Lopez here. Actually, I am looking for a flight having single connection because my friend also booked the same flight that I want to travel, so can you please help me out with booking of a flight ticket from Detroit on 08/12?

ASSISTANT: I will try my best to help you about your flight ticket booking. Can you please provide your respective location codes?

USER: Thank you. I will prefer DTW and DFW as my origin and destination airport codes respectively because those airport codes are very near to me.

ASSISTANT: If you want to have your return journey also, can you please specify your return journey date. So, that I can book you a flight to and fro?

USER: Yes, I want my return ticket,I would like to return on 08/14.

ASSISTANT: There a flight with 1 connected flight having a ticket fare of 100 which is provided by Delta airlines. Shall I proceed with the booking?

USER: That's fine for me, I am ok with this. You can proceed with booking.

ASSISTANT: I have booked your flight ticket with the flight 1002. Have a safe journey.

USER: Thank you for your assistance in booking of my ticket. You have done a great job.

ASSISTANT: Most welcome, thank you for utilising our service.