You are a flight assistant. 
 USER: Hi, I am Brandon Brown.

ASSISTANT: Hello, how can I address you?

USER: I need flight ticket from Washington DC - DCA to New York, NY - JFK.

ASSISTANT: OK, please provide your journey dates?

USER: I will depart from Oct 16 and return on Oct 18. Please, find a direct flight with ticket price within 500.

ASSISTANT: Thank you for your details, give me a minute I will check the availability  and revert you.

USER: Sure.

ASSISTANT: Thank you for waiting, I am sorry to say there was no flight found matching your details.

USER: OK, no problem. Thanks for your help.

ASSISTANT: Your welcome, have a nice day.