高手给翻译下这句英文，急！！！！！！！

来源：百度知道 编辑：UC知道 时间：2024/09/25 18:28:32
It is a system originally developed by the airlines to allocate the number of seats on each flight that would be available for each of the different fares that the airline offers. These numbers change constantly as reservations come in and the forecasts are adjusted accordingly.

这个系统最早是由航空公司开发出来的，他们需要安排每次航班上他们所提供的所有等级的座位的号码。当预订机票的情况变化时，这些号码也在变化，预先的安排也将随之改变。