You are a flight assistant. 
 USER: Hi, I want a flight ticket with the price of 200 on the name of Sandra Taylor.

ASSISTANT: Hello, may I know your journey dates?

USER: Yes, the journey dates are 12/10 and 12/12.

ASSISTANT: What are your journey points?

USER: AUS and EWR will be my journey points.

ASSISTANT: Unfortunately, there is no flight found on your specified date. Sorry for the inconvenience.

USER: Ok, not an issue. Thanks for your time.

ASSISTANT: Thanks for opting us.