2 days jiuzhaigou and 1 day huanglong

we want to travel in September to this area with a relaxing schedule:

day 1: Arrival late afternoon and shuttle bus to Jiuzhaigou
day 2: hiking in jiuzhaigou park
and 3: hiking in jiuzhaigou park
day 4: bus or taxi to Huanglong, hiking in Huanglong park --> is there a possibilty to deposit the baggage a the park entrance? taxi to hotel in Songpan or ?? --> any recommendations for the Location or Hotel? Are taxi available at huanglong park?
day 5: shuttlebus/taxi to Airport, flight at ~09.00 AM via Xian to Zhangjiajie (Arrival late evening)