How to write the hotel room delivery guarantee?

Examples of how to write a hotel room delivery guarantee;

Dear hotel management team: As a food delivery student in this hotel, I solemnly promise to go all out to perform my duties, ensure the smooth operation of the restaurant and provide customers with quality catering services. I understand that my duties include but are not limited to delivering food, keeping the restaurant clean and tidy, ensuring food hygiene and safety, and assisting waiters in various catering services. I will strictly abide by the hotel's regulations and standards to ensure that every dish can be delivered to customers on time, accurately and safely. I know that my work is very important to the operation of the hotel. I will try my best to improve work efficiency, reduce the error rate and always keep a positive and optimistic attitude. I will actively cooperate with my colleagues to create a harmonious and orderly working environment. I know that a letter of guarantee is not only a promise, but also a responsibility. I will prove my sincerity and firmness in this guarantee with practical actions. If I can't perform my duties or violate the rules and regulations of the hotel, I am willing to accept the corresponding punishment. Here, I once again assure the hotel management team that I will do my best to contribute to the success of the hotel. thank you