How to set app to auto away/available on app

Newbie question here: the drift bot on my webpage is managed by myself and my wife. We keep on missing people asking for help on our website when we are away from our phones. We would like to know if there is a way to automatically set the app as “away” during certain hours? We would like the bot to run 24/7 as we collect email details of the app is set to away.