use Symfony\Component\Form\FormBuilder;
use FOS\UserBundle\Form\Type\RegistrationFormType as BaseType;

class RegistrationFormType extends BaseType
{
    public function buildForm(FormBuilder $builder, array $options)
    {
        $builder
            ->add('username', 'text')
            ->add('email', 'repeated', array(
                    'type' => 'email',
                    'first_name' => 'input',
                    'second_name' => 'confirm',
                    'invalid_message' => 'repeated.invalid.email',
                 ))
            ->add('password', 'repeated', array(
                    'type' => 'password',
                    'first_name' => 'input',
                    'second_name' => 'confirm',
                    'invalid_message' => 'repeated.invalid.password',
                 ));
    }