You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Ronald Allen. Could you please help me with finding a flight ticket on the route AUS to PHL?

ASSISTANT: May I know your desired travel dates please?

USER: I would like to take off on 06/30 and return on 07/02.

ASSISTANT: Please wait a while, I will check and inform you.

USER: Sure, take your time.

ASSISTANT: There is a flight with connection limit 0 and fare 700, shall I proceed for booking?

USER: But, I need a flight with ticket fare 200 or less.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: That's ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for contacting us.