The hotel management system prompts what it feels like to be monopolized by other users.

Before operating the account, the system should lock the account first to prevent the account from being confused due to the conflict caused by the simultaneous operation of two people. When a person operates an account, he should lock the account first, and the program will automatically unlock it after the operation is completed. However, due to the program crash (for example) or network reasons, this person does not operate, but the account is not unlocked, and you will encounter problems. The solution is that I delete the data of a table in the database and delete the account that will be locked soon. Some software has the function of unlocking, which will automatically delete the locked account. You can try or consult the supplier to solve it. That's all I can do. I don't know the details. Such as which hotel management software to use.