Importing multi-turn.docx does not result in multi-turn behavior from QnA Bot

When I imported, trained, and deployed the document here:

https://github.com/Azure-Samples/cognitive-services-sample-data-files/blob/master/qna-maker/data-source-formats/multi-turn.docx

The resulting chat was not multi-turn. None of the multi-turn buttons were present.

It wasn't clear how the document was formed. Is there a word template for the formatting of bot headings for multi-turn? I wasn't sure how closely I needed to mimic the formatting in this document to get multi-turn behavior, and since it wasn't working for me with the standard Word Heading 1, Heading 2, etc. I tried loading this document to see if it would demonstrate multi-turn conversations and it did not.

My bot was created using the steps from this Quickstart: https://docs.microsoft.com/en-us/azure/cognitive-services/QnAMaker/Quickstarts/create-publish-knowledge-base#create-a-bot