Outlook: Schedule a meeting on behalf of someone else
You can schedule online meetings or conference calls on behalf of another person if you have been set up as a delegate on that person’s Microsoft Outlook account.
If someone would like you to serve as a delegate, Microsoft provides instructions that explain how to allow someone else to manage your mail and calendar. You can also contact the 24/7 Help Desk for assistance at 412-624-HELP  or request assistance from your departmental IT support team.
Note: Both you and your manager must be using Microsoft Lync 2010 communications software.
After you’ve been set up as a delegate, you can open your manager’s Microsoft Outlook calendar on your own computer and schedule the meeting.