You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how  may I assist you at this moment?

USER: I want to travel from DCA to CLT. Can you book a flight ticket for me?

ASSISTANT: Sure, can you please forward your journey dates?

USER: I want to fly in the flight on Dec 13 and Dec 15.

ASSISTANT: Do you need any stopover in between journey?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I want to return in afternoon time.

ASSISTANT: May I know your name please?

USER: Virginia Moore.

ASSISTANT: We found a Frontier airlines, flight number 1009, price is 100 in economy class, your return flight time is 12:00 hours. Shall I proceed?

USER: Proceed to booking.

ASSISTANT: Your ticket has been reserved with connecting flight.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.