Using scheduling for courses and taking payments

I am just starting out with scheduling and finding my way around. My client runs training courses and the idea is the users books a class and pays for the course. I have set up a 'new type of group or class' and added the cost and that is all fine. I next added the schedule block to the page. The courses are listed which is cool but when I test as a user I can't see where the payment is taken?

I am on the trial version as I build the site and not connected the payment provider yet. Can anyone help me out. 🐵

Thanks for reading

Steve