请以json格式回答我的问题，内容包括从北京到名古屋的航班信息: 航班号、起飞时间、到达时间。航班号提供两个选择，不同起飞日期时间。
user
{
  "flights": [
    {
      "flight_number": "CA428",
      "departure_time": "2023-04-15T08:00:00",
      "arrival_time": "2023-04-15T11:30:00"
    },
    {
      "flight_number": "JL881",
      "departure_time": "2023-04-16T14:45:00",
      "arrival_time": "2023-04-16T18:15:00"
    }
  ]
}
assistant