Pausing and deleting an assistant
Pausing stops the assistant and keeps everything. Deleting is permanent.
Both are at the bottom of Settings.
Pause the assistant: it stops answering calls and visitors, and its settings are kept. Right after pausing you can tap Undo, and at any time Resume. While paused, a bar reminds you calls aren't being answered.
Delete the assistant: its calls, knowledge, settings and connections are deleted for good, and it can't be undone. To confirm, type the assistant's name and tap Delete forever.
Both need an internet connection. Deleting an assistant doesn't cancel a subscription: see Cancelling a subscription.