You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit Los Angeles, could you please check any inexpensive flight from AUS to LAX?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, my preferable journey dates are from 12/14 to 12/16.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates. May I know your name please?

USER: Ok, my name is Brenda Williams. That's ok, thank you for your help.

ASSISTANT: Thank you for contacting us.