Apologies for reviving this old thread, but felt it better than starting a new one as it seems to cover the same ground as my issue

We booked a return ticket business / first from Europe to the US last year. Tickets were issued in August for travel in October but we ended up not using them and were assured by AA reservations that they were valid for a further year.

We now want to use the tickets and have no issues starting the trip within 1 year of their original issue, but completing the trip within that one year period would be problematic.

AA's conditions of carriage seem to help us:

Non- Refundable Ticket Validity

If the ticketed reservations are canceled prior to the ticketed departure time, the ticket will be valid as follows:

Wholly unused tickets – Travel must commence with one year from the original ticket issue date.
Example: If a ticket is issued on June 1, 2012, the new ticket travel must commence no later than June 1, 2013.
Partially used tickets – Unless otherwise specified in the fare rule, travel must be completed within one year from the outbound travel date.
Any fare difference and applicable change fees must be paid and tickets must be reissued when the itinerary is rebooked.

But the AA agent I spoke to yesterday was insistent that the whole trip has to be completed within one year of ticket issue.

Shall I keep calling until I get an agent who understands the CofC?