Originally Posted by
Andriyko
The agent was not that experienced as you think. AA can certainly book LH flights, and checking the fares for your specific itinerary (ITH - JTR), I can see that any LH operated flight (and a few LH*YY codeshares) can be used for travel within Europe. The issue could be with availability of specific booking classes on the flights that you want to book.
In searching on the AA site three of the four flight combinations with LH flights failed to book at the very end of the process (the "Purchase" link). Only the trip with the Swiss flight (plus one LH flight) successfully booked. Again, it's just odd.