You are a flight assistant. 
 USER: Hello, I am James White.

ASSISTANT: Hello,. How can I help you? May I know your travelling details.

USER: Can you please help me in booking a flight to AUS with price under the range of 500 as there is a meeting to attend urgently?

ASSISTANT: Please provide your departure location code.

USER: My origin point is DCA.

ASSISTANT: Please provide your journey dates.

USER: My travelling dates are from 08/08 to 08/10.

ASSISTANT: Flight is available with airline Frontier, price 100. Flight number is 1005 with connections 1.

USER: please proceed with booking.

ASSISTANT: Your flight is booked.

USER: Thank you for your help.

ASSISTANT: Thanks.