I want to call the hotel to promote my washing products.

It's best not to call. Many people turn off their mobile phones or visit their homes as soon as they hear the sales call or information, which makes people feel more real. If they talk to their boss after drinking, they will be divided into departments. I don't know which department it is. You'd better take a look and introduce you to a program. It is "Things at Work" in the "Financial Hotspots" on PPLve network TV, and the theme of the first issue is "Workplace-There are tricks to sell this job".