Cannot locate the New Guest Newsletter prompt template.

I am at the Add the Flow to Your Prompt Template

But i cannot find the New Guest Newsletter prompt template. I did completed https://trailhead.salesforce.com/content/learn/projects/quick-start-create-prompt-builder-flex-template/build-a-flex-prompt-template?trail_id=drive-productivity-with-einstein-ai 

Now that your flow is activated in Flow Builder, it’s ready to use in Prompt Builder.

1. Exit Flow Builder and return to Setup.
2. In the Quick Find box, enter prompt, then click Prompt Builder.
3. Select the New Guest Newsletter prompt template.

#Trailhead Challenges