主语：the most upscale hotel 该最高消费的饭店
 
并列谓语
may attract customers with the latest trend in holiday packages  将在假日套餐服务中以最新的时尚吸引顾客
but will not have their loyalty if Bell Service wasn't notified to take down luggage by the Room Attendant in Housekeeping Department.但是如果行李房没接到通知让客房部的服务员取行李,他们会言而无信.
 
注：
holiday packages 假日的一套服务
Bell Service 行李服务部