Lets say for example in Mondosol we want to monitor who is booking a lesson or has done a test from an email we have sent:

If they don't book the lesson or do any action, send them an email to remember it.

We should create a campaign to remind them to book their free lesson. If they don't book their lesson again, contact them with a private email, or skype, phone and other methods.

Every teacher have to update their calendar every time they can, so students can see for every day the time in which they can book their lesson.