seat booking Facility

Hi , 

I want to set up a booking Setup through MS CRM 2016(ex. like booking seats ) in which i am using a Service Entity with service calendar, facility equipment. 

as i can see while using resource Groups , its not taking up Contacts. Hence if someone wants to book a seat for some contact he will not be able to book as only resource Groups or teams are there.

Screenshot has been attached.

Thanks