Showcase build with a live, interactive demo at resort.arino.one/demo. Hotels don't want another system to migrate to. Thalassa Crest shows how a coastal resort and golf club can run the whole guest journey on WhatsApp while its PMS, booking engine and OTA connections stay exactly as they are. A reservation fires a webhook from the PMS, Booking.com, Cloudbeds, Mews or a direct booking engine, and the guest conversation starts on its own. It includes: booking confirmation and pre-arrival questions answered with a tap (arrival time, early check-in, airport transfer) concierge requests during the stay: housekeeping, restaurant tables, tee times and activities spa treatments booked in the chat against live availability room and spa charges approved with a one-time code and written back to the PMS folio a live concierge inbox with shift handover, multilingual replies (FR, DE, IT, ES) and campaign analytics post-stay feedback on the channel guests actually read I also produced a video series (Lovable + Remotion) covering the guest journey and the operator view.