no boardingpass yet for THE next flight guangzhou to manila

My parents have a layover/ stopover for 7 hours in guangzhou airport and they dont have a boardingpass yet for there next flight to Manila, they have only boardingpass from Amsterdam to guangzhou should my parents go to THE transfer desk and ask there boardingpass guangzhou to manila? My parents have a tickets already but no boardingpass to manila.
Thank you and hope to read your answer!