You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you at this moment?

USER: I need to schedule my trip to visit Seattle. Can you please help me in reserving the ticket from ATL to SEA?

ASSISTANT: Sure, I am here to help you with that. Can I have your planned trip dates?

USER: I am planning my trip on Nov 9 and again I will return back on Nov 11.

ASSISTANT: Ok, do you have any other requirements?

USER: I am flexible with single connection.

ASSISTANT: May I know your name?

USER: Myself Patrick Roberts.

ASSISTANT: Sorry to say that, there are no flight's available based on your journey details.

USER: Not a big deal, anyhow thank you very much for your kind information.

ASSISTANT: Thank you for approaching us.