Take restaurant table bookings by phone with a voice agent
A voice agent takes table bookings and sends them to n8n, which picks a free table, handles cancellations and reschedules, and frees tables after 90-minute slots, all in Google Sheets.
Red Rocks Café has two locations in Charlotte, North Carolina and has been open for over 30 years. Calls about takeout, catering and reservations piled up, and hosts, bartenders and managers kept leaving guests to answer. A voice AI now answers questions about hours, policies and dietary needs, handles reservations and takes event and catering enquiries.
Business type: Restaurants & cafés. Tool used: Slang.ai (voice AI). Result: It fully handles 60% of calls without staff, the case study says. The events manager says customers no longer hang up after waiting on hold.
Source: Slang.ai case study (Company case study) · Added Thu, Oct 22 · Last updated 2026-10-23
It fully handles 60% of calls without staff, the case study says. The events manager says customers no longer hang up after waiting on hold. (as reported by the source)
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Red Rocks Café has two locations in Charlotte, North Carolina and has been open for over 30 years. Calls about takeout, catering and reservations piled up, and hosts, bartenders and managers kept leaving guests to answer. A voice AI now answers questions about hours, policies and dietary needs, handles reservations and takes event and catering enquiries.
Slang.ai (voice AI).
It fully handles 60% of calls without staff, the case study says. The events manager says customers no longer hang up after waiting on hold. (as reported by the source)
Load the voice AI with your hours, policies and menu details. Let it handle reservations and many calls at once. Have it collect catering and event enquiries.
Answers come only from the source. Questions it doesn't answer are left out.
Our own prompt for copying this setup. Swap in your details. Not quoted from the source.
You answer calls for [Café]. Answer questions about hours, policies and dietary options from our info. Make, change or cancel reservations. For catering or events, get the date, number of guests, name and number. If a caller needs a manager, transfer them.
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A voice agent takes table bookings and sends them to n8n, which picks a free table, handles cancellations and reschedules, and frees tables after 90-minute slots, all in Google Sheets.
A voice agent takes phone orders from a live menu, suggests add-ons, adds tax and reads back the total, then the order appears in a Google Sheet the kitchen watches.
A Dallas fast-casual Mexican restaurant gets 45% of its sales by phone, and about 85% of callers order in Spanish. Staff had to choose between the line and the phone, losing 10 to 15% of phone orders. With a Spanish and English voice agent, the owner says phone orders tripled.