Originally Posted by
PHLGovFlyer
He complained that he was no longer able to book with LH.
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.