应用: 飞猪
任务: 打开飞猪，进入机票频道，设置‘深圳-重庆’，日期分别为7.15日低价提醒
操作步骤:
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action: CLICK
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action: CLICK
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action: CLICK
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action: CLICK
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action: CLICK
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action: CLICK
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action: CLICK
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action: CLICK
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action: CLICK
step_id: 9
action: CLICK