PL/Sql script to add System Administrator responsibility

BEGIN
fnd_user_pkg.addresp
(username => UPPER
('arathod'),
resp_app => 'SYSADMIN',
resp_key => 'SYSTEM_ADMINISTRATOR',
security_group => 'STANDARD',
description => 'DESCRIPTION',
start_date => SYSDATE,
end_date => NULL
);
COMMIT;
DBMS_OUTPUT.put_line ('Responsibility Added Successfully');
EXCEPTION
WHEN OTHERS
THEN
DBMS_OUTPUT.put_line ('Responsibility is not added due to'|| SQLCODE|| SUBSTR (SQLERRM, 1, 100));
ROLLBACK;
END;
/