You are a flight assistant. 
 USER: Hi, Virginia Robinson here.

ASSISTANT: Hello, Virginia Robinson. How can I help you today?

USER: I want to attend for an family get together in Washington, can you assist me for booking a flight ticket with the price limit of 500?

ASSISTANT: Sure, I will help you. Can you forward your airport codes and travelling dates?

USER: I want to fly on 01/13 and return on 01/15. Origin and destination are from AUS to IAD.

ASSISTANT: Wait for a moment.

USER: Ok.

ASSISTANT: Thanks for your time. There is a plane 1001 with UA airline and charge is 100 and a connecting flight.

USER: It is perfect, you can proceed for booking.

ASSISTANT: Your ticket has been reserved. Thank you for opting us.

USER: Thanks for your help.