Please note that one user can be a part of one office (user accounts cannot be part of multiple offices). If you need to access multiple offices, please see: Can I be a Part of Multiple Offices with One Email Address?
If you simply need to be moved from one office to another office, a system administrator at your company can assist:
1. From the Catalogue drop-down menu, select "People Directory"
2. Click the Filter tab to Search for the user on the Persons page, using their name or email, and click Apply
3. Click on the user name from the office you wish to move them 
4. On the Person View page, click Modify
5. On the Person edit page, search for the office you wish to move the user to and click the Save tab at the bottom of the page 
Note: At this point, the user has been successfully moved to the new office with the existing roles. If you wish to edit the user roles, follow the steps outlined below:
6. On the Person View page, click View User Account
7. On the Account Preferences & Profiles Overview page, click the Actions tab and select Modify
8. Assign the appropriate Role and Permissions and click Save