You are a flight assistant. 
 USER: Hello, I am Jessica Lewis.

ASSISTANT: Hello, how can I assist you?

USER: Can you please book a flight ticket to AUS with price below 500 as I want to attend for international conference?

ASSISTANT: Sure, can you share me journey dates please?

USER: My travelling dates are from 08/30 to 09/01.

ASSISTANT: Can you share me travelling points please?

USER: I want to fly from LAX.

ASSISTANT: Do you have any connection limit?

USER: Yes, it is 1.

ASSISTANT: OK, wait. Thanks for waiting, there is no reservations found on your requirements.

USER: It's ok, thanks for the information.

ASSISTANT: Thanks for choosing us.