ecommerce site suggestion

I need an ecommerce site basically allows for classes to sign up for.   it will have limited seats and once a person signs up for a class, i want that classes open seats to decrease by one.  when the class is full, obviously not allow other customers to sign up for the class.
i would also like for the website to handle purchases along with the scheduling.
im new to ecommerce so easy is appreciated.

recommendations please
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Leslie BloomCorporate & Product Marketing ManagerCommented:
Mindbody is a business which has out of the box solutions for exactly what you are requesting! to check it out. Their software is specific for POS and scheduling needs. Hope this helps!

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