Tag a user by user's type, situation, status, etc for better management.
In your workspace, go "Tags" from the left sidebar.
Here is where you manage your tags.
In the Action step, click "Flow Actions", then you can see "Add Tag" and "Remove Tag" options.
Use condition step to help you guide users with different tags to different steps.
You can also manually add / remove / check tag for each user in "Live Chat" from the left sidebar.