64% of Diners Still Call to Book. 40% of Those Calls Go Unanswered.

SevenRooms published a breakdown of seven points where restaurants lose bookings across the guest journey, leading with the gap between how diners actually book and how restaurants actually answer: 64% of diners still call to make a reservation, and 40% of those calls go unanswered during service — a stat paired with SevenRooms’ claim that 75% of diners are comfortable letting AI handle their reservation instead. Voice AI, which captures the booking directly into the reservation system without a live host, is positioned as the direct fix. The other leaks the piece names: no-shows (automated reminders and smart deposit systems), underused waitlists (instant texts when a table opens), friction-heavy mobile booking widgets, unmanaged online reviews (AI-powered sentiment tracking feeding search rankings), missing CRM-driven personalization — it cites 95% of first-time diners never returning without a follow-up touch — and underused marketplace integrations like DoorDash Reservations that extend reach while keeping first-party guest data. Every fix is framed as revenue recovery, not UX polish.

SevenRooms has a real customer number behind the Voice AI claim specifically: in an earlier case study, Casper Hospitality COO David Chen said that after switching to SevenRooms Voice AI, his four U.S. locations “practically retired our phones” — the system handled more than 3,800 calls in one month, created over 850 covers, and generated $28,000 in booked revenue, on top of a seating algorithm that evaluates more than 10,000 possible table combinations per second before recommending placement.

Taken together, the two pieces make the same argument twice: the biggest booking leak isn’t a marketing problem, it’s an answered-phone problem, and the fix is now cheap enough that “we’ll get to it” is itself the cost.