Hi! I am visiting Shanghai expo this coming June and afterwhich I plan to take the first flight from Shanghai to Zhangjiajie with my family on June 25 and be back to Shanghai on June 28 to catch the evening flight back to Manila. Can anybody tell me which airlines to take that has the lowest chance of flight cancellations or delays? And should I book these flights thru online or thru an agent? Also, is taking a direct flight toand from ZJJ the right decision? Thank you very much in advance for any info.