Originally Posted by
KLouis
OP: What do you mean by "rerouting"? Changing departure or arrival airports? Changing airport of connection? Changing the date and time of departure? Also, it is unclear to me what you mean by changing a second ticket. For you or another passenger? If for you, what are "identical" tickets on different dates?

Rerouting - changing arrival and destination airport.
Second ticket is a sperate trip, also flex, also trying to reroute the return leg. But I want to make the destination same as outbound. I.e. inbound is MUC-ATH and I want the second segment to also be MUC-ATH.