William and Diane Berek of Dunkirk announce the engagement of their daughter, Amy J. Berek of Amherst, to Brian D. Kuzdale of Amherst, son of Daniel Kuzdale and Patty Corsi, both of Dunkirk. An Oct. 18 wedding in St. Hyacinth Catholic Church, Dunkirk, is being planned. The bride-to-be is a graduate of Jamestown CommunityCollege and Empire State College. She is assistant to the director of the University at Buffalo admissions office. Her fiance, a graduate of Dunkirk High School, served in the Marine Corps and is a graduate of the corps' school of electronics. He is an independent electrical contractor and a licensed New York State real estate agent.