SiteMinder’s 2026 Partner Awards, held in London, recognised 12 companies turning AI into measurable hotel results, with GuestCentric’s Melissa AI lifting direct booking value by 38% across 300+ properties.SiteMinder’s 2026 Partner Awards, held in London, recognised 12 companies turning AI into measurable hotel results, with GuestCentric’s Melissa AI lifting direct booking value by 38% across 300+ properties.