What should the hotel room manager say to apologize to the guests because the waiter has a bad attitude? What did you say?/Sorry?

"sir! I'm sorry! I am the manager of our shop. First of all, I welcome you to our shop. Your complaint about our store is very important to us. At the same time, I am very sorry and ashamed of our waiter's attitude towards you and the inconvenience caused to you! (The perpetrator said: I'm very sorry, I'm sorry) It's all my negligence. I hope you don't mind! Please forgive me and express our apologies to you! We hope to have another chance to serve you and express our sincerity to you! Again, I'm very sorry! ! I hope you can come again!

This is a hotel. The manager should be courteous and courteous when apologizing to the guests, and don't feel sad (or humble). All the mistakes are your own.