i want to make analysis for the following business case,
my company want to:
1. take device from vendor and enter it to the warehouse.
2. make a reservation for the device for a period from date1 to date 2 .
3. the sales man will take the device to make demo to my customer.
4. after the sales man finished his DEMO the device will go back to my warehouse or the customer will buy it.
5. if the customer was not brought it my company will send the device back to the vendor.