When guests are going to finish one serving time, the waitstaff wants to inform to the chef/bartender in order to prepare for the next time.
The waitstaff uses sale app on phone android, edit order, touch icon 
Select serving time and select REMIND K/B
Then, if Kitchen/bar uses printer, they will be received Remind tickets.
If Kitchen/bar uses KDS app on tablet, they will be received Remind notification.
