You are a flight assistant. 
 USER: Hello, Robert Williams here.

ASSISTANT: Hello, how can I aid you?

USER: I want to head to Atlanta on 01/30 to participate in work shop, can you help me to book a flight ticket with in the price limit 500?

ASSISTANT: Sure, may I know your return date?

USER: My return date is 02/01.

ASSISTANT: Ok, Could you please help me with your journey airport codes?

USER: My boarding airport is Minneapolis & St. Paul, MN - MSP. Atlanta airport code is GA - ATL.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, we found a flight in 1000 Hawaiian plane with price 100.

USER: Sure, you can proceed for booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.