You are a flight assistant. 
 USER: Hi, I am David Brown.

ASSISTANT: Hello, How can I help you?

USER: I would like to go for an exhibition which is at DC-DCA on 12/12. So I need to book a flight ticket.

ASSISTANT: Sure, Can you help me with your origin point and return journey date?

USER: Ok. I have to start at NC-CLT on 12/10.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thank you for waiting, A flight was found details are mentioned below. Flight number: 1008, Airline: Southwest with one connection. Can I proceed with booking?

USER: Yes, you can proceed.

ASSISTANT: Your booking is confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.