All running requests and their status are displayed in the overview screen of the employee after logon (or by clicking on "Home" on the right top button). Therefore you always have an overview of the status of your requests and if these have been accepted or not.
Accepted or rejected requests you can delete from this overview (close) by clicking on the key icon .
Not yet accepted requests you can (as in the calendar) also cancel from here by clicking on the red cross .