You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you with today?

USER: Timothy Wilson here. Can you please book my ticket from DCA to AUS?

ASSISTANT: Sure, I can help you with that. Timothy, can you help me with your travelling dates?

USER: Sure, my journey dates are 08/18 and 08/20.

ASSISTANT: Ok, let me check for the availability if flight.

USER: Take your own time.

ASSISTANT: Timothy, there is a flight available at your requested dates with price 200. Would you like me to confirm the booking?

USER: Ok, please confirm.

ASSISTANT: Sure. Your booking is confirmed.Your flight number is 1019 and the airline is UA.

USER: Thanks for booking.

ASSISTANT: Have a great journey.