You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Could you please book a flight ticket from AUS to DCA?

ASSISTANT: May I know your travel dates?

USER: My travel dates are Oct 21 and Oct 23.

ASSISTANT: Do you have any connecting flight preferences?

USER: I need a connecting flight.

ASSISTANT: May I know your name please?

USER: I am Patricia Hall.

ASSISTANT:  There is a flight in Frontier airlines with the ticket price of 200 having one connection and economy class. Can I proceed to booking?

USER: Ok, proceed.

ASSISTANT: Your booking is confirmed and the flight number is 1023.

USER: Thank you.

ASSISTANT: Thank you.