The Services menu option on the left is where you add services. To add a new service, select the Services > Add New option from the left hand WordPress menu. When you create a new service, you need to setup a few more options.
If you wish to add a services section to your page, once you have created an empty row, follow these steps
A single-service page is created as you would create any other page in wordpress. After you have created the page with the desired content, just link it to the service that you wish to redirect to that page.