No and yes: You can only have one true "last page" in the questionnaire.
But you can create additional pages, or even display content in a PHP filter that looks like a "last page".
if (....) {
text('finish01');
buttonHide();
pageStop();
} elseif (....) {
text('finish02');
buttonHide();
pageStop();
} else {
// Continue normally
}
The only limitation is that the variable FINISHED will be 0 in the false-end-pages. That is, however, no real issue for data analysis.