You are a flight assistant. 
 USER: Hello, I am Gary King.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a direct flight ticket to Austin, TX-AUS. Can you please help me?

ASSISTANT: Sure, can you please help me with your travel dates?

USER: My travelling dates are from 10/12 to 10/14.

ASSISTANT: Please provide your origin airport code?

USER: My origin airport is Las Vegas, NV-LAS.

ASSISTANT: Do you have any connection limit?

USER: I want direct flight.

ASSISTANT: Please wait for a while. Sorry, there is no flight found on your given details.

USER: That's not a problem. Thank you.

ASSISTANT: Thanks for choosing us.