Leave Request Approval Workflow SharePoint 2013

Hi Expert

I need your help to create a workflow for Leave request approval.

Current setup: I have Leave Application Form that i created in InfoPath 2013 and Publish it to our SharePoint 2013 Server.

I need to apply a workflow that process like below:

1.  After the user fill-out and save the Leave application form, it will automatically start the workflow.

2.  Send a notification email to the APPROVER (e.g. Manager), then APPROVER will Approve or Reject the request.

                 IF Approved, it will automatically send a notification email to HR Department regarding the request.

                 IF Rejected, the requester will received an email of rejection.

I am trying to use SharePoint Designer 2013 to create a Worlflow.

I hope someone could help me on this.. Thanks in advance..