You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you the best today?

USER: I would like to prefer economy class for my business trip to Detroit. So can you book the flight ticket for me?

ASSISTANT: Sure, we are gleeful to help you. Can you share me your trip dates?

USER: The trip dates are from Sept 12 to Sept 14.

ASSISTANT: May I know your specific timings to travel?

USER: Any time would be fine.

ASSISTANT: Do you need any break in your journey?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other preferences?

USER: That is it.

ASSISTANT: Where you need to catch the flight and land?

USER: The airport codes are from SFO to DTW.

ASSISTANT: May I know your good name please?

USER: I am Michael Wilson.

ASSISTANT: We found a connecting flight with fare of 100 and 1004 flight number. Shall I proceed?

USER: Which airline is that?

ASSISTANT: Your seat has been reserved with Spirit Airlines in economy class.

USER: I am fine with this flight. Thanks for booking my flight ticket.

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