how to have an online form with an internal section for administration?

I am looking at having a request form that will have a section for administration to review and comment. Ideally that section would not be visible to the people filling that form but only visible to the administrator after the form is filled.

Any suggestions?

That is possible through hidden fields. Please read this guide for more help:

https://www.jotform.com/help/194-How-to-Assign-a-Status-to-Submissions