You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you for today?

USER: I am Gregory Johnson. I want to book a flight ticket with a price limit of 500.

ASSISTANT: Can you please let me know your planned dates of journey?

USER: My departure is 09/13 and return date on 09/15.

ASSISTANT: Please, provide your location points.

USER: I am planning to meet my friends in DC - DCA and my source from CA - OAK.

ASSISTANT: I have found a flight-1013 which costs 100 from JetBlue airlines with 1 connection limit. Shall I proceed with the booking?

USER: I need a direct flight to travel. Don't proceed to booking.

ASSISTANT: Sorry to say this, there is no direct flight to your destination.

USER: Thanks for your service.

ASSISTANT: Most welcome.