How to enable fallback to GPT-3?

Follow the steps below to allow Walter to search outside of the knowledge base you have created

1. Navigate to the "Channels" tab
2. Click on "Small Talk" and under Fallback toggle "Enable Fallback to GPT-3"
   
3. 
   Click "Enable" to save
4. Once it has been enabled, you'll also be able to customise the GPT-3 Warning message