A blog post on the AWS Machine Learning Blog describes how to build a healthcare appointment agent using Amazon Nova 2 Sonic and Amazon Bedrock AgentCore. The average no-show rate across US healthcare sits between 5–30 percent, depending on specialty. The agent authenticates patients by voice, manages appointments (confirm, cancel, or reschedule), collects pre-visit health information, and escalates to human staff when needed. Amazon Nova 2 Sonic is a speech-to-speech model available on Amazon Bedrock that enables real-time conversational AI with bidirectional streaming, processing speech natively in a single model so vocal context like tone and pace isn’t lost to transcription. The serverless deployment runs on Amazon Bedrock AgentCore with Amazon Cognito authentication, Amazon DynamoDB persistence, and Amazon Simple Notification Service (Amazon SNS) notifications. A browser-based React frontend streams bidirectional audio over authenticated WebSocket connections. To connect the agent to actual phone lines for outbound dialing, you would integrate a telephony service such as Amazon Connect Customer.