Virtual Personal and Professional Assistant

I am looking for a virtual personal assistant. I need day to day personal tasks as well as some light weight research for respective work.

I'm looking for a virtual assistant to complete projects that are anticipated to require approximately 10-15 hours per week. The work will include the following:
- Schedule appointments and manage daily personal calendar
- Online shopping/ordering of gifts and supplies
- Travel booking
- Research and data entry
- Submit health insurance claims, etc.

Skills required:
- Great communication skills via phone, email, and chat
- Strong knowledge of Google Docs and Google Calendar
- Extremely organized, timely, responsive
- Great project manager
- Proactive learner, self starter

In your proposal, please share a brief summary of your experience with similar clients and a writing sample.