Does D306/307 take passenger from Luoyang Longmen Station to Xian North Station?

Some train sites does not show D306/307 in their schedule. For those sites which show, there is no price for ticket from Luoyang to Xian.
It appears that this train only drops over passengers at Luoyang and continues to Xian but do not accept new passengers.
I want to take this early morning fast train from Luoyang to Xian because it allows me to catch 1100AM flight at Xian Airport.