BEIJING (AP) — Like other relatives of passengers of Malaysia Airlines Flight 370, Wang Zheng’s frustration and anger over a lack of any certain information about the fate of his loved ones continues to grow two weeks after the plane went missing.

“Biggest of all is the emotional turmoil I’ve been going through. I can’t eat, I can’t sleep. I’ve been dreaming of my parents every day,” said the 30-year-old IT engineer from Beijing, whose father and mother, Wang Linshi and Xiong Yunming, were both aboard the flight as part of a group of Chinese artists touring Malaysia.