You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you?

USER: I am Sandra Green. I am looking for a direct flight, could you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your planned dates to travel?

USER: I would like to take off on 12/07 and return on 12/09.

ASSISTANT: Can you please share your source and destination airport codes?

USER: My nearest source airport code is DTW and destination airport code is CLT.

ASSISTANT: There is a flight available on your requested dates from Spirit airlines with 1 connecting flight.

USER: Please proceed with the booking if the ticket fare is less than 200.

ASSISTANT: Your ticket is booked with flight 1012.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: You are welcome.