Bonnie Agent: A WhatsApp Smart Booking Assistant Built with n8n and Claude

Bonnie Agent is an open-source AI receptionist system based on n8n workflows, designed specifically for beauty clinics. It automatically handles booking reservations and cancellations via WhatsApp, supports multilingual conversations, and syncs in real-time with Google Calendar. It addresses pain points for small and medium-sized clinics such as lack of an IT team and heavy booking communication burden, making it a practical solution that can be directly deployed to production environments.

Small and medium-sized beauty clinics face unique challenges in digital transformation: no dedicated IT team, no budget to hire full-time booking specialists, yet they need to handle a large number of booking calls and messages. Repetitive communication takes up a lot of staff time, and delayed responses to messages during non-business hours (evenings, weekends) lead to a decline in customer experience. Bonnie Agent is an open-source solution designed specifically to address this pain point.

Bonnie Agent is an AI Agent workflow based on n8n, enabling 24/7 automated customer service. Its core features cover the entire booking lifecycle:

• Real-time availability check: Query Google Calendar during conversations to confirm slot availability
• Booking creation and management: Automatically create/delete Google Calendar events and save customer information to Google Sheets
• Multi-channel notifications: Send WhatsApp confirmation messages via Twilio and internal notifications via Gmail
• Multilingual support: Conversations in three languages—Spanish, Galician, and English

The tech stack combination has significant advantages:

• n8n: Open-source workflow automation platform with visual orchestration
• Claude Haiku 4.5: Lightweight AI model responsible for natural language understanding and dialogue generation
• Twilio: Cloud communication platform providing WhatsApp messaging capabilities
• Google Calendar/Sheets/Gmail: Store bookings, leads, and internal notifications Advantages: Controllable costs (self-hosted + pay-as-you-go + free tiers), easy customization (visual editing), strong scalability (rich integration nodes)

Quick Deployment Steps:

1. Import bonnie-agent.json into your n8n instance
2. Configure credentials: Anthropic API, Google Services OAuth2, Twilio HTTP Basic Auth
3. Set the time zone and start n8n (example: Europe/Madrid)

Application Scenarios: Beauty clinics, small clinics, multilingual communities, extended service hours Value: Response time reduced from hours to seconds, 24/7 availability, reduced human errors, improved customer satisfaction

Open-Source Ecosystem: A supporting landing page project (bonnie-landing) and an online demo environment reflect the open-source community's practice of "from code to product". The open-source model allows for custom extensions (e.g., adding new channels, integrating other services).

Implementation Insights:

• Focus on specific scenarios: Specialize in beauty clinic bookings rather than general assistants
• Integrate with traditional systems: Integration with Google tools reduces migration costs
• Choose the right model: Claude Haiku balances quality and cost
• Prioritize user experience: Use the familiar WhatsApp channel for interactions

Bonnie Agent demonstrates how AI empowers small-scale service industries: The combination of low-code and open-source tools allows clinics without professional development teams to deploy intelligent systems. The open-source, low-cost, and easily customizable model serves as a reference path for small businesses' digital transformation. The value of AI lies not in advanced technology but in solving real business pain points.