This is definitely a Trip in Vain, and a full refund is due. OP die _NOT_ fly "To DFW", and AA is _NOT_ due any money for transportation "To DFW". Instead, OP only flew PART of the way to the destination (SFO). OP bought a ticket to go from ATL to SFO. The fact that OP made it to DFW (or ORD or MIA or LAX) is irrelevant. The agreed-upon travel (ATL-SFO) did not occur and OP is due a full refund for Trip In Vain.