{"product_id":"n8n-appointment-no-show-waitlist-refill-automation-twilio-gmail-openai","title":"n8n Appointment No-Show + Waitlist Refill Automation (Twilio, Gmail, OpenAI)","description":"\u003ch3\u003eFill appointment no-shows automatically—Google Calendar + Twilio\/Gmail + waitlist powered by OpenAI\u003c\/h3\u003e\n\u003cp\u003eThis n8n workflow monitors your upcoming Google Calendar appointments, detects no-show risk, offers freed slots from your waitlist, and sends confirmations\/recalls via \u003cstrong\u003eTwilio SMS\u003c\/strong\u003e or \u003cstrong\u003eGmail\u003c\/strong\u003e. It also reads incoming replies, uses \u003cstrong\u003eOpenAI\u003c\/strong\u003e to classify intent, and updates both your \u003cstrong\u003eGoogle Sheets\u003c\/strong\u003e log and \u003cstrong\u003eGoogle Calendar\u003c\/strong\u003e bookings accordingly.\u003c\/p\u003e\n\n\u003ch3\u003eWhat this workflow does\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRuns on a schedule and reacts instantly:\u003c\/strong\u003e executes every 15 minutes, and also handles inbound replies received via \u003cstrong\u003eTwilio (SMS)\u003c\/strong\u003e or \u003cstrong\u003eGmail (email)\u003c\/strong\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLoads operational data from Google Sheets:\u003c\/strong\u003e reads the \u003cem\u003eClients\u003c\/em\u003e, \u003cem\u003eServices\u003c\/em\u003e, \u003cem\u003eWaitlist\u003c\/em\u003e, and \u003cem\u003eLog\u003c\/em\u003e tabs to track history and availability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlans next actions based on calendar state:\u003c\/strong\u003e logs confirmation messages (including a \u003cstrong\u003e48-hour ask\u003c\/strong\u003e and a \u003cstrong\u003e24-hour nudge\u003c\/strong\u003e), prepares batch waitlist offers for freed slots, and generates recall messages plus daily\/weekly staff reports.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSends messages with channel + opt-out handling:\u003c\/strong\u003e appends planned actions to the Sheets \u003cem\u003eLog\u003c\/em\u003e first, then delivers outbound confirmations, waitlist offers, and recall messages via \u003cstrong\u003eTwilio SMS\u003c\/strong\u003e or \u003cstrong\u003eGmail\u003c\/strong\u003e depending on recipient settings.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnderstands replies and updates bookings:\u003c\/strong\u003e normalizes inbound SMS\/email, filters out unknown senders and automatic\/out-of-office messages, then uses \u003cstrong\u003eOpenAI\u003c\/strong\u003e to extract reply intent with quoted evidence.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplies outcomes to the right message:\u003c\/strong\u003e updates the \u003cem\u003eLog\u003c\/em\u003e and creates or deletes \u003cstrong\u003eGoogle Calendar\u003c\/strong\u003e events when cancellations occur or a waitlist slot is accepted, including front desk email notifications when a reply requires attention.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUse cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReduce revenue loss from appointment no-shows by moving waitlist candidates into confirmed slots.\u003c\/li\u003e\n  \u003cli\u003eSend timed confirmation + recall sequences while maintaining an auditable history in Google Sheets.\u003c\/li\u003e\n  \u003cli\u003eAutomate staff reporting based on calendar state and prior log history.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGoogle Sheets\u003c\/strong\u003e: Clients, Services, Waitlist, and Log storage + action auditing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGoogle Calendar\u003c\/strong\u003e: reads upcoming events, creates\/deletes events for accepted waitlist slots and cancellations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwilio\u003c\/strong\u003e: inbound SMS replies + outbound SMS messaging\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGmail\u003c\/strong\u003e: outbound email and inbound reply handling\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOpenAI\u003c\/strong\u003e: classifies incoming reply intent using extracted evidence\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003en8n nodes\/tools\u003c\/strong\u003e: set, code, gmail, switch, twilio, aggregate\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"N8N Commerce","offers":[{"title":"Default Title","offer_id":46153951936691,"sku":"N8N-20316","price":31.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/6279\/6723\/files\/oLKURdw8sczS7qIlUB7fu_pdW7h57Q.png?v=1790931965","url":"https:\/\/buyflowscripts.com\/products\/n8n-appointment-no-show-waitlist-refill-automation-twilio-gmail-openai","provider":"N8N Commerce","version":"1.0","type":"link"}