Event Registration? Or No...

I'm pretty familiar with Gravity Forms, but this is a little bit tougher than your everyday form. I want to know if there is an events plugin that is recommended for event registration integration to Gravity Forms. I need to recreate this form (See section "Select an Information Session"):

http://laverne.edu/form/information-session/

Am I better off going with an events plugin and creating a custom form for this? The problem is I would really like to use Gravity Forms for its built in conditional logic, which you can see is essential to this section.

Thanks!

This might work for other applications on our sites, but this form needs to make a call to whatever events management system we use from a standalone gravity form based on a conditional form element and the date. Quite a sticky situation :/ Thanks for the info though!