fab-manager/app/views/notifications_mailer/notify_admin_slot_is_canceled.html.erb

<%= render 'notifications_mailer/shared/hello', recipient: @recipient %>

<p><%= t('.body.member_cancelled', NAME: @attached_object.reservation.user&.profile&.full_name || t('api.notifications.deleted_user')) %></p>
<p><%= t('.body.item_details',
         START: I18n.l(@attached_object.start_at, format: :long),
         END: I18n.l(@attached_object.end_at, format: :hour_minute),
         RESERVABLE: @attached_object.reservation.reservable.name) %>
</p>
<p><%= t('.body.generate_refund') %></p>