Paypal Integration

I would like to use my form for clients to purchase a session fee with. However, once a specific time is purchased, I would like for it to no longer be an option. Is there a way for me to do this?

https://form.jotform.com/82884867986182

This widget might do the job.

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

You can give each session a single inventory, so once someone selects a time, that time will not be available to anyone else.