i've misconnected DFW-ICN twice in the past 6 months. PNS-DFW-ICN, was in paid first. When PNS went mechanical, told the agent to rebook in KE F. No problem. MCI-DFW-ICN (J) but had used SWU to upgrade to F. Told agent to rebook me EY DFW-AUH-ICN. No problem. But would only rebook in J not F. Understandable.