How to book a banquet and negotiate the price with the hotel?

Time period is very important. If it is a good time, he will never give you a discount. Some people just go upstairs to make money by drinking, and the dishes are basically flat. You can compare it with several companies of the same grade, or you can order your own food and then talk about the price. The problem of drinks is a bit difficult, which needs careful consultation. But if you bring drinks, you must use people's cups, and they must pour them wine and other services. He also needs to make some money or negotiate carefully.