Voice-based appointment booking system with ElevenLabs AI and Cal.com

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        "id": 535,
        "icon": "file:webhook.svg",
        "name": "n8n-nodes-base.respondToWebhook",
        "codex": {
          "data": {
            "resources": {
              "primaryDocumentation": [
                {
                  "url": "https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-base.respondtowebhook/"
                }
              ]
            },
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              "Core Nodes",
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            "nodeVersion": "1.0",
            "codexVersion": "1.0",
            "subcategories": {
              "Core Nodes": [
                "Helpers"
              ]
            }
          }
        },
        "group": "[\"transform\"]",
        "defaults": {
          "name": "Respond to Webhook"
        },
        "iconData": {
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        "displayName": "Respond to Webhook",
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    ]
  },
  "detail": {
    "description": "\u2705 What problem does this workflow solve? Tired of the back-and-forth involved in scheduling meetings? This workflow lets you offer a seamless, voice-based appointment booking experience. It automatically checks your Cal.com availability and either books a meeting or helps the caller choose another time\u2014powered by ElevenLabs for a human-like voice interaction. --- \u2699\ufe0f What does this workflow do? 1. Receives an inbound voice call (e.g., from a website or IVR system). 2. Uses ElevenLabs to drive the voice interaction with natural, AI-generated speech. 3. Checks real-time availability from your Cal.com calendar. 4. Books a meeting if a slot is available. 5. If not, asks the user to suggest a new time and checks availability again. 6. Confirms the appointment with a verbal response and optional email or SMS. --- \ud83d\udd27 Setup \ud83e\udde0 ElevenLabs Custom Tools Setup Add two tools in Custom Tools in ElevenLabs with the following details. 1. Name: bookSlot Description: Use this tool when the user confirms their slot and appointment. When you have the proper name and email of theirs. POST: {n8nwebhookurl} 2. Name: checkAvailableSlot Description: Use this slot to check Available slots in our calendar. POST: {n8nwebhookurl} \ud83d\udde3 ElevenLabs Prompt Configuration First Message: Thanks for calling InfyOm Technologies. How can I help you? Use the following System Prompt: 1. Personality You are a clear, helpful, and respectful assistant focused solely on booking appointments for clients. - Identity: A virtual appointment scheduler. - Core Traits: Polite, efficient, conversational, respectful. - Role: Guide users through choosing a time, checking availability, and finalizing the booking. 2. Tone Your tone is polite, professional, and engaging\u2014friendly enough to feel human, but focused enough to stay on task. - Use conversational cues like \u201cOkay,\u201d \u201cGot it,\u201d \u201cSounds good,\u201d etc. - Maintain a warm but efficient pace. - Speak clearly and respectfully at all times. Ensure the conversation is on both topics. 3. Goal Your task is to book an appointment for the client. Step-by-step Conversation Flow 1. Greeting & Purpose - Greet politely and state the purpose. - Example: \u201cHi! I\u2019m here to help you book an appointment.\u201d 2. Request Preferred Time - Ask: \u201cCan you please tell me your preferred time slot for the appointment?\u201d - Understand the user's date, and if it is not clear, then ask for the full date with month and year. 3. Check Availability - Use the checkAvailableSlot tool with the user\u2019s preferred time. - If the slot is available: - Confirm with the user: \u201cThat slot is available. Should I go ahead and book it for you?\u201d - If the user agrees, \u2192 Use bookSlot. - If the slot is not available: - Say: \u201cIt looks like that time isn\u2019t available... Would you like to look for the same time on the next day?\u201d 4. Handle Next-Day Option - If the user agrees, check availability for the same time on the next day using checkAvailableSlot. - If available, \u2192 confirm and use bookSlot. - If not, \u2192 politely inform and ask for a different time. 5. Close the Call - Confirm the booking if done. - Example: \u201cGreat! Your appointment is booked. Thank you and have a wonderful day!\u201d 4. Guardrails - Do not discuss anything unrelated to appointment booking. - If the user asks for something outside your scope: - Say: \u201cI\u2019m only here to help with appointment bookings. For other questions, please contact our support team.\u201d - Never speculate about unavailable data or functions. - Never ask for a date format from the User, like Say date in Day Month and Year format. If you can't understand the user's date, then say Please speak the full date. 5. Tools You can use the following tools to help book appointments: - checkAvailableSlot: Use this to check if the user\u2019s requested time is open. - bookSlot: Use this to confirm the appointment after the user agrees. End call - Always says Thanks for reaching out to us. Have a nice day. \ud83d\udcc5 Cal.com API Setup - Go to cal.com and generate an API Key. - Create new Cal API cr"
  }
}