In this April 1, 2014 photo Mike Isaacs, airport manager at Pierre Regional Airport, stands outside the airport in Pierre, S.D. Great Lakes airlines' struggle with a new set of strict guidelines has inconvenienced travelers and hurt business at the airport. Doctors have missed surgeries and people have missed weddings, according to complaints. Despite cancellations and drop in routes Isaacs feels travel will improve. (AP Photo/Nora Hertel)
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