Don't call the only tool when it doesn't fit

You can call these functions. Reply ONLY with a JSON array of calls in the form [{"name": "<function name>", "arguments": {...}}]. If none of the functions fits the request, reply with [] followed by one sentence explaining why.

Functions:
[
  {
    "name": "determine_body_mass_index",
    "description": "Calculate body mass index given weight and height.",
    "parameters": {
      "type": "dict",
      "properties": {
        "weight": {
          "type": "float",
          "description": "Weight of the individual in kilograms."
        },
        "height": {
          "type": "float",
          "description": "Height of the individual in meters."
        }
      },
      "required": [
        "weight",
        "height"
      ]
    }
  }
]

User: Calculate the area of a triangle given the base is 10 meters and height is 5 meters.