How can I separate/filter my sales contacts vs. partner contacts on reports

Summary:

I am using the CRM Activity Real Time subject area on my activity report. I need to filter out the appointments for our partner contacts and put those on a separate report. I added various Partner fields but those are all blank.

Content (required):

Partner Management

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):