As the season changes at Disneyland from Halloween to Christmas, theme park enthusiasts have already filled all remaining reservations until next year. The theme park officially concluded its Halloween season on Oct. 31. Visitors entered the park on the morning of Nov. 1 to witness a slight switch in decorations as the seasonal pumpkins were removed. “Christmas in the park is the best and happiest time of the year,” Stacie Bolden wrote on Facebook. “ALL of my reservations are dedicated to holiday time in the park.” Disney fans and Magic Key annual pass holders reacted to the seasonal change on social media while reminiscing about the Halloween decorations.    “PUMPKIN in the Main Street Square has vanished,” Venus Lawrenz wrote Nov. 1 on Facebook. “Pumpkin heads over the turnstiles still remain.” Brian Witt added, “It’s been Halloween for 2 months. Time for Christmas!” Disneyland is slowly putting up winter decorations with snow already …