You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to travel from JFK to AUS. Can you help me to book a flight ticket?

ASSISTANT: Sure, may I know your name please?

USER: Donna Campbell.

ASSISTANT: May I know on which dates you are willing to travel?

USER: I want to fly in the flight on July 28 and July 30.

ASSISTANT: May I know your airline preference please?

USER: No, but I am looking for a connecting flight.

ASSISTANT: May I know your depart and return time for journey?

USER: I don't have any.

ASSISTANT: There is a connecting flight of fare 200 with economy class in Southwest airline, shall I proceed for booking?

USER: Proceed to booking.

ASSISTANT: Your ticket has been confirmed with flight number 1011.

USER: Thank you for helping me out.

ASSISTANT: You are welcome.