According to Article 4 of China's Consumer Protection Law, business operators and consumers should follow the principles of voluntariness, equality, fairness, honesty and credibility when conducting transactions. So if you ask for a refund, it is allowed.
Article 9 Consumers have the right to choose their own commodities 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.
According to the principle of fairness and justice in the contract law, one party of the contract advocates anticipatory breach of contract, while the other party has the right of first appeal, and the breaching party needs to make corresponding compensation to the other party. According to the provisions of Article 108 of the Contract Law, if one party explicitly expresses or shows by his own behavior that he will not perform the contractual obligations, the other party may require him to bear the liability for breach of contract before the expiration of the performance period.
So you can ask the hotel for a refund, but you need to make corresponding compensation.