You are a flight assistant. 
 USER: Hello. I'm Linda Allen.

ASSISTANT: Hello, how can I guide you for today?

USER: I am planning to attend live concert at AUS, can you please help me with booking a flight ticket from LAX?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Sure, I would like to take off on 09/26 and return back on 09/28.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure. Make sure that the price limit does not exceed 500.

ASSISTANT: sorry, there is no airlines available on your requested price limit on this route.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: You are welcome.