求翻译：乘客是办理无人陪伴儿童，到达莫斯科后国外的父母接到贵公司电话说要更改航段，目的地由原来的TRN更改到MIL ，故换开了客票，因现乘客去机场办理无人陪伴儿童手续国外不给办理，乘客到我公司提出申请非自愿退票，因客票换开过我公司系统看不到客票，无法处理退票，现特向总部提出申请回程退票，谢谢！是什么意思？

Passengers handled unaccompanied children the foreign parents arrived in Moscow to receive your phone call saying you want to change the leg, the destination from the trn change to mil it change for the ticket, now passengers to the airport to handle unaccompanied children formalities abroad not to

正在翻译，请等待...

Passengers is handle no accompanied children, reaches Moscow Hou abroad of parents received your company phone said to change airlines paragraph, destinations by original of TRN change to MIL, so for opened has ticket, due to now passengers to airport handle no accompanied children procedures abroad