Is it illegal for the hotel not to cancel the order?

Consumers have the right to buy or refuse to buy, and hotels cannot interfere.

Legal basis: Article 9 of the Law of People's Republic of China (PRC) on the Protection of Consumer Rights and Interests states that consumers have the right to choose their own goods or services. Consumers have the right to choose their own operators to provide goods or services, choose their own varieties of goods or services, and decide whether to buy or not to buy any kind of goods or accept or not to accept any kind of services. Consumers have the right to compare, identify and choose their own goods or services.