멀티항공 티켓의 노쇼관련

안녕하세요 :) 오랜만에 게시판 글 쓰는데 질문글이라 송구스럽네요. 

항상 third party website으로 항공티켓 예약하지말아야 하면서도 싼값에 하게되는데요ㅜㅜ

오래전에 justfly.com으로 저와 제 파트너의 멀티항공티켓을 샀었는데요. (two one-way fares with different airlines) 사정상 제 파트너는 first leg을 미스하고 새로 부킹을 해야할 것 같은데 이게 돌아오는 다른 항공사의 티켓에게 영향이 갈까요? 

같은 항공사면 당연히 first leg에서 노쇼이면 나머지도 다 캔슬되는건데...

justfly.com에 찾아보면 

If you missed your flight, contact your airline for further assistance. If something within your control causes you to miss your departing flight, the airline will automatically cancel your entire flight itinerary and the value of your tickets will be lost. If you were issued a multi-ticket booking, which is a roundtrip flight with 2 one-way fares, the airline might only cancel the initial segment of your flight which was missed. Cancellation policies are entirely governed by airlines, any comments, questions or concerns should be directed to them.

If you missed a connecting flight due to the airline (ex: delayed flight, mechanical problems, etc.), airlines may put you on standby for the next available flight and will most likely help and guide you through the process.

Please note, refunds will not be issued for missed flights, in rare occasions if they are, they will be subject to the airline's penalties and restrictions.

이렇다는데.. 혹시 경험담이 있나해서 물어봅니다.