This comprehensive n8n workflow automates the management of customer appointments and follow-ups via SMS, integrating Twilio for messaging, Airtable for session and lead management, and OpenAI for intelligent communication. The system begins by triggering on incoming SMS messages from customers, checks for specific commands like ‘STOP’ to manage follow-up preferences, and retrieves previous chat history for context. An AI-powered agent handles scheduling, rescheduling, or canceling appointments using the Cal.com API, while follow-ups are generated and sent to re-engage prospects who haven’t confirmed appointments. The workflow ensures efficient customer interaction, seamless appointment handling, and prevents spamming by tracking follow-up counts. Ideal for service providers who want to automate customer engagement, schedule management, and follow-up messaging in a unified, intelligent system.

Node Count	>20 Nodes
Nodes Used	@n8n/n8n-nodes-langchain.agent, @n8n/n8n-nodes-langchain.chainLlm, @n8n/n8n-nodes-langchain.lmChatOpenAi, @n8n/n8n-nodes-langchain.outputParserAutofixing, @n8n/n8n-nodes-langchain.outputParserStructured, @n8n/n8n-nodes-langchain.toolHttpRequest, airtable, scheduleTrigger, stickyNote, switch, twilio, twilioTrigger