I actually do. I am way overdue in finishing breaking up the long tutorial page into smaller ones.
Attached is a zip file with the code and media for the demo/tutorial. It doesn't show user input, but you should be able to see how to fit something like that in. The HTTP example shows how to do something in multiple steps.
For a user input the first state would be creating the input environment. The next state would be waiting for the user to indicate that they were done entering stuff. The final state would be collecting and returning the entered data.
The goal of the 'game' is to get the ball to hit the box. You move the ball by clicking where you want it to go.
I had to rename the zip file so that I could select it here. Drop the '.thing' extension from the file name and then you should have a zip file.
Cheers,
Ancient Lady
AGK Community Tester and AppGameKit Master