You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Myself Deborah Carter, I am planning my holiday trip to visit Orlando. Can you please help me in reserving the ticket from AUS to MCO?

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

USER: I am planning to leave on Aug 15th and again I will return back on Aug 17th.

ASSISTANT: May I know your price limit please?

USER: I willing to afford only 500.

ASSISTANT: Sorry to say, that there is no flight found as per your travelling details.

USER: Not a big deal, anyway thank you very much for your service.

ASSISTANT: You are welcome.