We have the situation where our users might acces the bot on shared laptop. Be it at home or in a corporate setting. Privacy wise it's not good to have the entire existing discussion, migh even not be AVG proof. Also from our users we receive feedback that its confusing when starting new chat after some time. The solution can be automated clean up after some team, or a command in the discussion to clean the the history. (now only option is to have the user clear browser cache)