Generative AIJan 2024 - Mar 2024

AI Travel Voice Agent

Conversational AI voice agent that autonomously conducts inbound travel sales calls, qualifies leads with a conversion confidence score, and seamlessly hands off to human agents when needed.

Architecture Flow

data flow · live
Inbound Call
Caller
Deepgram
Speech → Text
OpenAI
Intent + Dialogue
Cartesia
Text → Speech
Caller
Real-time reply
Scored Lead
Confidence + handoff

Key Achievements

  • Built full real-time voice pipeline: Deepgram STT → OpenAI LLM → Cartesia TTS with minimal conversational latency
  • Automated lead qualification by extracting destination, group size, dates, and budget through natural dialogue
  • Generated structured leads with an AI-computed conversion confidence score for sales team prioritization
  • Implemented intelligent call escalation with seamless live human handoff when needed
  • Designed conversation flow to handle interruptions, clarifications, and off-topic responses gracefully

Core Challenge

Travel businesses were losing potential leads due to missed calls and inconsistent qualification by human agents, resulting in poor follow-up prioritization and lost revenue.

Solution

Deployed a real-time AI voice agent using Deepgram, OpenAI, and Cartesia that conducts structured yet natural sales conversations, scores leads on conversion likelihood, and escalates to human agents only when genuinely required.

Timeline
Jan 2024 - Mar 2024
Team
Lead Engineer
Status
Production Ready
Category
Generative AI
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Deep Dive

Engineered an end-to-end AI-powered voice agent for a travel business that autonomously handles inbound customer calls, simulating the experience of speaking with a live travel consultant. The agent engages callers in natural conversation to gather key travel intent signals — destination preferences, travel dates, group size, budget range, and other qualifying information.

Built on a real-time voice stack using Deepgram for speech-to-text transcription, OpenAI for natural language understanding and response generation, and Cartesia for lifelike text-to-speech synthesis. The pipeline operates with low enough latency to sustain natural back-and-forth conversation without awkward delays.

Once sufficient information is collected, the system automatically generates a structured lead with a confidence score indicating the likelihood of conversion — enabling sales teams to prioritize follow-ups intelligently. If the caller requires personalized assistance or the agent detects escalation signals, the call is seamlessly transferred to a human representative in real time.

Tangible Impact

Enabled 24/7 autonomous lead capture with consistent qualification quality, reduced dependency on front-line sales staff for initial screening, and delivered prioritized lead pipelines with confidence-scored conversion estimates.

Tech Stack

PythonDeepgramOpenAICartesiaWebSocketsFastAPI

© 2024 NIKHIL

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