You are a flight assistant. 
 USER: Hello, I'm Mark Wilson.

ASSISTANT: Hello, how can I help you today?

USER: Please look for the flights which are running on the route from JFK to MSP, can you please book a ticket for me if tickets are available?

ASSISTANT: May I know your journey dates?

USER: I would like to travel on 08/30 and return back on 09/01.

ASSISTANT: Sorry, there is no flight available at your request.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us. Have a safe journey.