How to order Internal services (e.g. Cafeteria) in iProcurement

Hello Gurus,

We have a requirement where customer wants to go to i-Procurement and order internal services e.g. Cafeteria. In iProcurement, currently we have explored procuring from Supplier (External - creates purchase orders) and procuring internally (Inventory- creates internal sales orders). However the internal services do not fall into both of these - 1. To be procured from cafes in the building and not suppliers), 2. These are not defined as inventory items.

Is there any other way to map this requirement into iProcurement - is there a possibility to define internal service items. We are using Oracle EBS 12.2.11

Thanks, SR