You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: Can you please help me in booking a flight ticket to AUS from LAS?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable travel dates?

USER: My travel dates are from Aug 30 to Sept 01.

ASSISTANT: May I know your name please?

USER: I am Amy Clark.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Can I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry to inform you that, there are no flights available on this route as per your travel dates.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Thank you.