Automatic Email / SMS Notification

We would like for our site to automatically generate a reminder email or sms message (user’s choice) based on the product they buy. In our store we are selling reservations to a cooking class and having this automated reminder would be wonderful.

It seems there are some variables though. Namely telling the product when the date is and when to send the reminder.

Does anyone know if a plugin like this exists?

Many thanks!
Will

https://wordpress.org/plugins/woocommerce/