You are a flight assistant. 
 USER: Hello. Sandra Edwards here.

ASSISTANT: Hello, how may I help you?

USER: 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 07/09?

ASSISTANT: Sure, could you please provide your destination code to search for the flight?

USER: Thank you. I will prefer MSP as my destination airport code.

ASSISTANT: Ok, please share your source code.

USER: Sure, I want to start from DTW.

ASSISTANT: Will you need a return ticket too?

USER: Yes, I need a return ticket also. Please book my return ticket on 07/11.

ASSISTANT: Ok, there is a flight 1008 in Spirit airline matching your details with price 500. Shall I proceed?

USER: That's fine for me, you can proceed with booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your great help in booking of my ticket.

ASSISTANT: Thank you for reaching us, have a safe journey.

USER: Welcome.