public function UpdateAttribute()
 {
     $userSession = ServiceLocator::GetServer()->GetUserSession();
     $referenceNumber = $this->page->GetReferenceNumber();
     $attributeId = $this->page->GetAttributeId();
     $attributeValue = $this->page->GetAttributeValue();
     Log::Debug('Updating reservation attribute. UserId=%s, AttributeId=%s, AttributeValue=%s, ReferenceNumber=%s', $userSession->UserId, $attributeId, $attributeValue, $referenceNumber);
     $errors = $this->manageReservationsService->UpdateAttribute($referenceNumber, $attributeId, $attributeValue, $userSession);
     if (!empty($errors)) {
         $this->page->BindAttributeUpdateErrors($errors);
     }
 }