Any Provision to capture Show Interest Feature of Training Offering in BI Report ?

Summary

Need Report on Empty Training Offerings and Users who have shown interest for same

Content

Hi, 

We have explored the three tables available for Training Offering in BI Reporting. We have a huge section of Training Offerings Catalog that has been made available to users across the organization to Show Interest in. These Training Offerings do not have any mapped items and through a Dynamic Object on a static page, this has been made available for all employees.

But, we are unable to capture the users who are showing interest in these offering through BI Report.

Administrators have to individually go to the training offering and view the users who have shown interest. No Automatic triggers or reports are going on same .