You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you aid me to book flight ticket from AUS to LAS?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: My journey dates are Aug 23 and Aug 25.

ASSISTANT: Do you have connection limit preference?

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications for this trip?

USER: I do not have any other specifications.

ASSISTANT: May I know your good name please?

USER: I am Linda King.

ASSISTANT: Linda King, there are no direct flight services are available on this route on your provided dates.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for contacting us.