{
  "input": "Book a flight to Paris leaving July 32",
  "steps": [
    {
      "tool": "date_parser",
      "input": "July 32",
      "output": null,
      "error": "date out of range"
    },
    {
      "tool": "fallback_response",
      "input": null,
      "output": "Sorry, I couldn't find flights for that date."
    }
  ],
  "final_response": "Sorry, I couldn't find flights for that date.",
  "expected_behavior": "Detect bad user input and suggest alternatives: e.g., 'There is no July 32. Did you mean July 31 or August 1?'"
}