Custom Event Properties to be used in the emails. Is it possible?

Hei guys another little help

Is it possible to add into an email text the “Custom Event Properties” of a certain event? 

Example: 

A patient is signing up for a doctor appointment the date 23/02 at the time slot 3:00 pm.

Now, throughout Zapier I m sending the event called “appointment” with: 
- Customer Event Property date: 23/02
- Customer Event Property slot time: 3:00 pm 

Is it possible to use this properties in order to inform the patient directly in the text of an email?