registerAction

public function registerAction(Request $request)
    {
        $user = new User();

        $form = $this->createForm(UserType::class, $user);
        $form->handleRequest($request);

        if ($form->isSubmitted() and $form->isValid()) {

            $confirmPassword = $request->request->get('confirmPassword');

            try{
                $this->userService->register($user, $confirmPassword);

            }catch (Exception $exception){
                $this->addFlash('message', $exception->getMessage());
            }

            return $this->redirectToRoute("index");
        }

        return $this->render("user/register.html.twig", [
            'form' => $form->createView()
        ]);
    }