Plugin register in course

Hello!

I need a plugin that allows the option to register in a course. The owner of the web will offer classes and people must fill out a form and pay the course. No more is needed, the classes are face. Needless to select dates either, just at the time that the link “join the course” display the form to populate the data and the button is pressed to pay more or less that would be the desired structure. Can I indicate you can serve me any? Thank you!