Mythox  /  Work  /  Case Study AI·01

Blue Dive:
the AI that answers the phone.

A restaurant phone line answered entirely by an AI receptionist we built — from telephony to table booked. This is the write-up of one real, unedited call.

ClientBlue Dive Restaurant
DeliverableAI Voice Agent
Agent“Anika”
LanguageEnglish
Call length0:56, unedited
StatusLive on a real line
01The Brief

Stop losing tables to unanswered calls.

Restaurants miss their most valuable calls at their busiest hours — the floor is full, the phone rings out, the guest books elsewhere. A dedicated phone person costs more than the bookings they rescue, and voicemail converts at roughly zero.

The brief from Blue Dive was blunt: answer every call instantly, sound like a person, and finish the booking — not take a message for a human to chase later.

02The System

Five stages, one seamless voice.

Anika runs as a real-time pipeline. The caller dials a normal phone number; everything past the dial tone is machinery we assembled and tuned:

Phone lineReal dial-in number, live audio stream
Streaming STTTranscribes while the caller speaks
LLM brainPersona + booking slot tracking
Booking toolsAvailability check, reservation write
Neural TTSLow-latency, human pacing

The brain tracks five booking slots — date, time, party size, name, phone — asks only for what it hasn't heard, and must read everything back before committing. That read-back rule is why a misheard digit never becomes a lost table.

03The Call

Recording & annotated transcript.

Real call, screen-recorded live. A guest dials +1 938-222-3954 and speaks only to the AI. Nothing staged, nothing cut.
Anika · AIThank you for calling Blue Dive, this is Anika. How may I help you today?Answered on the first ring — no hold, no IVR menu.
CallerHey — I wanted to book a table at your restaurant for tomorrow at 8 PM, and we're having four guests with us.One free-flowing sentence. The agent extracts date, time and party size in a single pass — no “say the date after the beep”.
Anika · AIThank you for sharing the details. Just to confirm — a table for four, tomorrow at 8 PM. May I have your name and contact number?Knows what it still needs. Asks only for the two missing slots.
CallerMy name is Ishan, and my contact number is 95478218.
Anika · AIThank you, Ishan. Let me repeat your details to make sure I have everything correct — table for four guests, tomorrow at 8 PM, name Ishan, contact number 95478218.Mandatory read-back guardrail: every detail confirmed before anything is committed.
Anika · AILet me quickly check the availability for you… your booking is confirmed.Live tool call mid-conversation — the agent checks the reservation book and writes the booking, then confirms on the call.
04The Outcome

A phone line that converts like a form.

  • Booking completed end-to-end by AI — captured, confirmed and logged in 56 seconds, no human touched it.
  • Zero missed calls, by construction — the agent answers 24/7, including the Friday-night rush when staff can't.
  • Zero data errors — the read-back rule catches misheard names and digits before they become no-shows.
  • Staff stay on the floor — nobody leaves a guest to run to the phone.

Next case study · AI·02

The same agent, in fluent Hindi — switched mid-call.

Read Hindi case study