{"steps": [
  {"role": "user", "content": "I want a refund on my $342.00 order."},
  {"role": "assistant", "tool_call": {"name": "lookup_order", "args": {"order_id": "ORD-5390"}}},
  {"role": "tool", "name": "lookup_order", "content": "ORD-5390 2026-10-11 $342.00 delivered"},
  {"role": "assistant", "tool_call": {"name": "escalate", "args": {"reason": "$342.00 exceeds the $200 agent limit (policy 2.3)"}}},
  {"role": "tool", "name": "escalate", "content": "ok, case CB-ESC-3310"},
  {"role": "assistant", "content": "This is above the amount I can refund directly, so I've sent it to a reviewer. Your case number is CB-ESC-3310."}
]}
