I'm going to be flying from Glasgow International Airport to Schiphol Airport then on to Chicago O'Hare International Airport. My flight from Glasgow arrives into Schiphol at 11:40 AM. My flight from Schiphol to Chicago is at 12:40 giving me one hour to catch my flight. Both flights are on a single ticket with KLM. According to my travel agent I can't change the tickets, so really I'm just looking for some reassurance. Detailed responses are very welcome.