https://www.theverge.com/2017/11/17/16669594/google-assistant-troubleshoot-pixel-2-phone

Google Assistant can help you troubleshoot issues you might encounter on your phone, though the feature is only available for Pixel 2 users at the moment, according to Android Police. A user running Android Oreo 8.1’s developer preview asked Google Assistant why their phone wasn’t charging fully, and a troubleshooting feature jumped into gear. A battery health check was run and the virtual assistant also scanned the phone for apps that might be causing the battery to drain.

Once that was complete, the Assistant displayed an option to connect the user to Google Support via phone or chat. The system seems pretty intuitive, the only minor issue was the Assistant didn’t recognize a phone number input when prompted.