I need an AI-powered receptionist designed to handle appointment scheduling efficiently. The system should sync seamlessly with online calendars such as Google or Outlook, send confirmation emails to clients, and allow users to select time slots from a pre-set schedule. The AI receptionist will interact with clients via a voice assistant interface. The deliverable should be fully functional and easy to integrate into the desired platform. Emphasis on accuracy, responsiveness, and a user-friendly experience is important. Let me know if you have any questions or suggestions as we proceed with the project.