I had reserved on priceline.com then needed to change my reservation because of a death in the family. I spent five hours on the phone on hold - then passed back and forth from priceline's call center folks to Korean Airlines agents to try and get my flight changed without major expenses incurred. I appealed to these organizations to make the change without changing the price of our return tickets from the US to Thailand. Instead, we were charged $550 for each ticket. Seems bereavement is not a reason to serve the customer in this practical way.