应用: 飞猪
任务: 打开飞猪，进入机票频道，设置“北京-杭州”，日期分别为7.6日低价提醒
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