求翻译 机票更换航空公司的规定，也就是签转的规定

问题描述：

3 the carrier to whom such coupon /MCO/MPD had been endorsed,
for the first onward carriage from the point on the route where the

change is to commence; provided that where the carrier who issued

the ticket is designated as the carrier for any subsequent
Onward section(s) and has an office of its own or of its general agent who is authorized to endorse tickets on its behalf at the point on the route either where the change is to commence or where the change in travel documents is to be effected, the carrier effecting the change shall obtain such issuing carrier’s endorsement at either of such points;

问题解答：

http://zhidao.baidu.com/question/94496236.html?si=2

3承运人这样券/ MCO / MPD被认可,
从第续运路线上的

变化是开始,但是在承运人签发

门票是指定的承运人接受
续节(s),有自己的一间办公室或其总代理人有权签票对其在沿途可以改变或旅行证件的改变是不可撤销的,承运人应当获得这样的变化的影响在发行的支持这样的分。