Originally Posted by
EsherFlyer
Although it is a return trip there are two ticket numbers shown for each pax, presumably because of the way a reschedule / reroute due to cancellation of the original outbound has been handled. I can see a "View Details" link for one ticket , showing the outbound segment and a date for when the reschedule happened. But not for the other ticket, which I hope still covers the inbound journey.
You might give this Amadeus link a try, although if you don't read Chinese you may need to use either some inductive guesswork or a machine translation to work out what goes where:
Amadeus Itinerary Receipt (ITR)