[FSX] Need help with a problem.

HelloI have a simple request...I need a small favour, atm i am building a script but now i need to know what the thing is to let it know my plane has landed at its destination.I cant seem to figure this out by myself.I know about managed data request but this doesnt seem todo the job automaticly.Example:Departure point: EGLLArrival Point: EGCCSo what i need to know is, when i press a button to start my flight with a simconnect api it needs to see automaticly when i have landed at my destination airport and popup a msgbox saying you have made it safely.Thanks in advance.