You can use Rasa X to review conversations/bot logs. You can filter on the conversation screen by intent, action etc. including e.g. action_default_fallback :Review Conversations
You can query the Rasa X database directly, or hook up an external dashboard using the event broker to get whatever reports you want. Rasa Enterprise also has an analytics screen with some baseline metrics/reports, but if you want customizable analytics you should hook up an external dashboard.