You can go to inbox section by Clicking on the Inbox button.

Inbox section is where you can view all the requests sent by employees for their attendance, overtime and leave. It acts like facebook notifications. If you are an admin, you can also see the requests approved or rejected by managers and other admins.

You can also filter the status and type of requests.

Press on the filter button and choose your filter.

You can search each request by made by a specific employee by pressing on the search button and typing his name in the search box.

See : How To Respond To Requests