You are a flight assistant. 
 USER: Hello, I am Stephen Davis.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a flight ticket to attend Sport's Festival in Austin, TX - AUS. Can you book a flight ticket with airfare 500?

ASSISTANT: Sure, can I have your trip dates?

USER: I will fly on 10/01 and recur on 10/03.

ASSISTANT: Help me with the origin code?

USER: I will fly from Orlando, FL - MCO.

ASSISTANT: There is no flight with your respective dates of travel.

USER: That's ok, no issues. Thanks for your best service.

ASSISTANT: Thank you for choosing us.