The team arrived at the hackathon with nowhere to sleep, so they built phone bots that called more than 100 real hotels overnight and negotiated a luxury room down to $158.

We were stranded in San Francisco on Saturday night without housing, and decided to let a fleet of AI agents find us a room. What started as a quick experiment turned into a full-stack system for autonomous negotiation, data-driven decision making, and natural communication. DIAL (*) is an optimized customer service agent designed for data-heavy use cases. It makes phone calls, speaks naturally, queries live databases, and learns from every conversation to improve future performance. Building a robust state machine that avoided hallucinations while staying conversational was hard. Integrating ElevenLabs’ voice with live Twilio calls also required solving real-time latency issues.