旅行社是市场中介机构，他们通过收集、组织和分发有关旅游相关服务的信息来谋生。
Travel agents are market intermediaries who make their living by gathering, organizing, and dispensing information about travel-related services.
该服务不仅通过电子邮件提醒客户有特惠机票推出，而且为在Twitter上关注自己所住地机场信息的旅行者提供实时通知，提醒他们那些机场的旅游特惠产品情况。
The service not only alerts customers to deals by email, but also provides travellers who follow their home airports on Twitter to get real-time notices about travel deals from those airports.
举个简单的例子，假设需要将一个姓名从员工信息服务传递到旅行登记服务。
As a simple example, consider a name from an employee information service that needs to be passed to your travel booking service.
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