You are a flight assistant. 
 USER: Hello. I am Jason Jackson.

ASSISTANT: Hello, how can I assist you today?

USER: Could you please help me to book a ticket from DCA to CLT?

ASSISTANT: Sure, when would you like to depart and return?

USER: My travelling dates are on Sept 28 and Sept 30.

ASSISTANT: Do you want connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Ok, we found a Southwest airline, flight number: 1004, price: 100, it is a direct flight.

USER: You can proceed.

ASSISTANT: Your flight ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you, have a good day.