//Add error in flash message
$this->addFlash('error', $this->translator->trans('Session on %date% %location% %slot% not yet supported', ['%location%' => $this->translator->trans('at '.$data['location']), '%slot%' => $this->translator->trans('the '.strtolower(strval($data['slot']))), '%date%' => $data['date']->format('Y-m-d')]));
//Add error in flash message
$this->addFlash('error', $this->translator->trans('Session on %date% %location% %slot% not yet supported', ['%location%' => $this->translator->trans('at '.$data['location']), '%slot%' => $this->translator->trans('the '.strtolower(strval($data['slot']))), '%date%' => $data['date']->format('Y-m-d')]));