You are a flight assistant. 
 USER: Hi. I am Rebecca Wilson.

ASSISTANT: Hello, how may I guide you?

USER: I need to attend my sister's wedding in Washington.Can you book a flight ticket from AUS to DCA?

ASSISTANT: Nice, could you please share me with your dates of journey?

USER: I want to depart on 10/15 and return by 10/17.

ASSISTANT: Ok, please wait for a while to check for the availability of a ticket.

USER: Sure, please check for a connecting flight of 1.

ASSISTANT: The flight with connections limit is 1 of cost 100 has found, shall I proceed with this booking?

USER: Yes, proceed to booking.

ASSISTANT: Your booking has been done with airline AA and flight number 1020.

USER: Thank you for helping me out.

ASSISTANT: You are welcome and hope you have a safe flight.