Patients reschedule themselves. Front desk gets the time back.

What it does

Three customer texts. Zero front desk minutes.

1. 1
   Twilio Inbound SMS — webhook

   Point Twilio's Messaging Service inbound webhook at this URL. Each inbound text fires the workflow with From, Body, and (optionally) the linked customer ID.
2. 2
   Is RESCHEDULE Keyword?

   Case-insensitive contains check. Anyone who texts something else (CONFIRM, STOP, gibberish) falls through the false branch and the workflow ends. Wire that branch to your existing inbox tooling if you want.
3. 3
   Fetch Open Slots — HTTP Request

   Hits your booking software's open-slots endpoint with the customer's phone number. Returns three slots that fit their appointment type and provider. Replace the placeholder URL with yours.
4. 4
   Format Slot Options — OpenAI

   Uses gpt-4o-mini to format the three slots as a single SMS under 320 characters. Numbers them 1, 2, 3. Day, date, and time only. Ends with: Reply 1, 2, or 3 to book.
5. 5
   Send Slot Options — Twilio

   Texts the formatted options back to the customer's number. They see three real slots in one message and pick the one that fits.
6. 6
   Wait For Customer Reply — webhook resume

   Pauses the workflow up to 30 minutes and exposes a resume webhook URL. Set Twilio to relay the customer's number reply (1, 2, or 3) to that URL when it arrives.
7. 7
   Book New Slot — HTTP Request

   Hits your booking software's book endpoint with the customer's phone and selected option. The endpoint should also cancel the original appointment in the same call so you don't double-book.
8. 8
   Send Confirmation — Twilio

   "Booked. You will get a calendar invite shortly. Reply CANCEL anytime if your plans change." Short, final, no follow-up needed.

Use it in your business

Vertical-specific framing