Can I save a jotform and resume entering data at a later time?

I have agents that enter data into the form I created. They have asked if its possible to save what they have and come back to the form to finish later and then submit.

That is possible. If this is the form where you want to allow users to save and continue the form later, there are two methods:

1) Saving data in users browser local storage: https://www.jotform.com/help/227-How-to-Enable-Auto-Fill-on-Forms 

2) Implementing the "save and continue later" workaround, to allow the user to continue from any browser, in any device, anywhere: https://www.jotform.com/help/97-How-to-Save-Forms-and-Continue-Later 

Let us know if you need more help, we will be glad to assist you.