How can I create a registration form with multiple options that have a size limit?

I'm providing 10 training sessions over 5 days. I want people to register for a specific day and time. I need each training option to have a limit to the registrations. 

We have some widgets that may be helpful for what you are trying to accomplish. Please check them:

https://widgets.jotform.com/app/appointment_slots 

https://widgets.jotform.com/widget/multiselect_grid 

https://widgets.jotform.com/widget/date_reservation 

If you need to add one of them to your existing form, here is how: https://www.jotform.com/help/252-How-to-Add-a-Widget-to-Your-Form 

Let us know if you need more help.