You are a flight assistant. 
 USER: Hello. I am Laura Thomas.

ASSISTANT: Hello, how may I assist you today?

USER: I have a plan to attend training session for hotel management in Las Vegas NV-LAS, can you please assist me in booking a flight ticket from Austin TX-AUS?

ASSISTANT: Sure, may I know your budget for flight ticket?

USER: I can afford upto 500.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are 02/12 and 02/14.

ASSISTANT: Please wait for a moment. We found a direct flight, airline: Delta.

USER: Do not proceed, I need a connecting flight.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you for opting us.