You are a flight assistant. 
 USER: Hello, myself Charles Wilson.

ASSISTANT: Hello Charles Wilson, how can I assist you best?

USER: I would like to attend women's fashion week which is organised by my cousin in Los Angeles, CA - LAX. Can you help me in booking a flight ticket within the price of 500?

ASSISTANT: OK. I can help you best. May I know on which dates you are willing to travel?

USER: I want to return on 09/18. I want to fly on 09/16.

ASSISTANT: Ok, I want to know your boarding airport?

USER: My source point is from Austin, TX - AUS.

ASSISTANT: Sorry, we did not find any flights at that locations due to uneven weather conditions.

USER: It's ok, not a problem.

ASSISTANT: Thanks for availing our service.

USER: Thank you for your information.