样例：
当接收到客户要退订的消息时，机器人自动询问客户是否确认要退订，对于二次确认了退订的客户执行加入退订列表。对于手滑的客户，不做任何退订操作，但建议给客户一个简单的回应。
步骤一：登陆YCloud账号，创建Chatbot
步骤二：添加退订的触发关键词
建议：设置多个退订关键词，并且选择Containing(包含）而非 Exact matching(完全匹配)。
命中列表中的任意一个关键词都会触发Chatbot。设置完成后点击保存按钮。
步骤三：询问客户是否是想要退订消息
（optional）
强烈建议加入此步骤，以免客户误入退订列表。使用Ask a question组件，询问客户：您是否是确认退订消息？
详细步骤：
①选择Ask a question 组件
②选择Buttons消息
③设置询问内容：您是否确认要退订消息
设置Button的两个选择：
- 是的，我要退订你们的消息
- 不， 我点错了
设置完成后点击保存
④设置完成后连接 Keyword trigger 到 Ask a question 组件
步骤四：加入退订列表
①加入退订组件。
②可以选择是否要自动回复退订成功。如果需要添加自动回复，点击Auto-reply右侧开关，并在下方输入自动回复内容，选择Save进行保存
②将 Ask a question 组件中的 【是的，我要退订你们的消息】按钮连接到退订组件。
步骤五：增加发送文本（optional）
增加一个send message 文本组件，并连接到【不，我点错误了】按钮
步骤六：保存Chatbot并启用
编辑好Chatbot模版后，点击右上角的Save，并且在弹窗内点击Active - save，即刻完成退订Chatbot的激活。当客户触发退订关键词，Chatbot会自动将此号码加入退订名单，并且显示在 Contact - Unsubscribe 的名单里。
相关文档链接：
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