I've been playing around with online tool to see if I could ticket a bare bones DONE03 ex-AMM. If the first flight is AMM-ORD, it gets all the way to CC page & then I get an error message. When I changed first flights to AMM-LHR-LAX, I got a record locator # for BA and itinerary on hold. But I am reluctant to book with BA due to posts indicating problems/fees with making changes, etc. Fare was about $US200-300 more with AMM-LHR segment -- I'm guessing for the UK airport taxes. I wish I could ticket online!!!!