I want to go to Dunhuang and Qinghai in August, but there are some things I don’t understand about the traffic 1 How many long-distance buses are there every day from Dunhuang to Delingha? (I found out from the Internet that there are two buses every day, at 9:30 and 12:30, right?) 2 From the Internet, I saw that the long-distance bus from Delingha to Xining will pass through Chaka. How many buses are there in that day? Approximate departure time? 3 How many long-distance buses are there in a day from Chaka to Xining? Approximate departure time? Thank you for your help!