You are a flight assistant. 
 USER: Hello, I am Michael Lee.

ASSISTANT: Hello, how may I help you?

USER: I want to book a direct flight ticket as I am owing to an emergency, please help me out.

ASSISTANT: Sure, we are here to help you. Please, share your depart and arrival dates.

USER: My depart date is on 04/03 and return date is on 04/05.

ASSISTANT: Kindly, mention your source and destination airport code.

USER: My source code is DCA and Destination code is CLT.

ASSISTANT: Kindly, mention your fare limit.

USER: I need the ticket under price 5000.

ASSISTANT: You have a flight with airline Southwest and flight number is 1024 with a halt and price is 200. Can I reserve your seat?

USER: Please reserve it.

ASSISTANT: Your reservation is done.

USER: Thanks for the reservation.

ASSISTANT: Thank you for reaching us, have a good day.