You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Anna Robinson, I am going to Atlanta to visit Stone Mountain Park with my brother. Help me to find a flight with on connection.

ASSISTANT: Sure, may I know your journey dates?

USER: My travel dates are, returning on 09/13 and departing on 09/11.

ASSISTANT: May I know your price limit?

USER: Sue, it is 1000.

ASSISTANT: Can you please provide me your source and destination airport codes?

USER: My source is Washington DC-IAD and I like to land on airport GA-ATL.

ASSISTANT: Please wait for a moment, I will check and get back to you.

USER: sure.

ASSISTANT: Thanks for waiting. I found a direct flight.

USER: Sorry I need a direct flight. Sorry I need a flight with one connection.

ASSISTANT: Sorry, no connecting flights available with your given details.

USER: Thank you for helping me.

ASSISTANT: Thanks for choosing us.