应用: 飞猪
任务: 打开飞猪，进入机票频道，找到特价机票，选择单程“北京-杭州”，选择7.18日，选择一个航班，查看机票详情
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: CLICK
step_id: 3
action: CLICK
step_id: 4
action: CLICK
step_id: 5
action: CLICK