Purchase Requisition - Automation

Hello, I would like to use Power Automate to automate the approval of a Requisition form. Case: an employee submits a requisition form to purchase a new laptop; he will upload documents (vendor quote, ..). He adds all the details. The form is directed to his manager. The manager can see the documents uploaded by the employee and all the details. The manager can approve, reject, approve/reject with comments. If approved, the form is sent to Finance. Finance can see all the documents and all the details and who approved previously. Finance can approve, reject, approve/reject with comments. If approved, the form is sent to Accounts Payable for processing and payment. Accounts Payable has access to all the documents and details. I have a Requisition form template. Just need to automate this process