You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, is there any help that you need from our agency?

USER: Melissa Smith here. I want to travel from AUS to CLT for attending a VLSI seminar. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, can you please let me provide your journey dates?

USER: My departure date is 11/19 and return date is 11/21. Make sure my price limit is 500.

ASSISTANT: Thank you for your information.

USER: My pleasure.

ASSISTANT: I found a flight 1011 in Hawaiian airlines with a 1 lay by in your trip, can I proceed to book the flight ticket?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ok, the ticket booking is done to your region.

USER: Thank you for helping me.

ASSISTANT: Welcome.