Hi guys, the three of us in my family plus my mum are booked on a direct, return flight from the UK to Italy. All of us will take the outbound flight, however on the way back my mum will not be traveling with us, as she is then going somewhere else (on a different airline and on a different ticket). Will my mum not joining on the way back create any issues for the rest of us on our return trip? I have skipped the return flight several times in the past, but it was always traveling on my own, so not sure whether how it works on a booking for four people. Thanks!