Not sure what a Virtual Assistant does?  They perform a range of PA duties but don't work from your office, unless you need me to from time to time.  Services include:

• Diary Management - Keeping busy professionals organised
• Telephone Answering - With follow up actions completed according to defined scenarios
• Email Marketing campaigns - One-off or planned regular communications
• Product Distribution Service - Storage capabilities with distribution via Australia Post or Courier(s)

If you are looking to enhance your perception and automate your office, then you need to talk with Clarity!