You need to give Bill recommendations on how he can update his ordering processes, what questions would you ask him (Bill appears to be using a paperless ordering system, you can discuss a paperless or manual system). After speaking with Bill it becomes obvious that he doesn't understand how accounts are processed, explain the process of ordering an item and how the transaction is recorded in the company accounts (in your conversation you will need to discuss authorisation, receipt of invoice, matching to purchase order and checking details on order and invoice)