应用: 美团
任务: 打开美团，预定08-15日北京到杭州，08-18返回的机票。
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
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action: CLICK
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action: CLICK
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action: CLICK