请随机生成3位球员的所属球队，并用json格式输出所有信息
user
{
  "players": [
    {
      "name": "Lionel Messi",
      "team": "Paris Saint-Germain"
    },
    {
      "name": "Cristiano Ronaldo",
      "team": "Manchester United"
    },
    {
      "name": "Neymar Jr",
      "team": "Paris Saint-Germain"
    }
  ]
}
assistant