Supplementary answer: It would be better if the wedding company wrote that certificate. Explain to the wedding host with the certificate and find a wedding company to solve it.

I don't think the hotel has any responsibility in this regard. You should give this happy Lord some material comfort within your tolerance. After all, opening the door to do business is the most important thing. Even if it's not your fault, you can give your customers some comfort and psychological satisfaction. You can arrange your public relations department to solve this problem without losing money. Losing money may make your customers breathless. If similar incidents happen again in the future, there will be a price to pay for not doing so.

1. Did the host or the wedding company negotiate with the hotel when the cold fireworks were to be released? If so, the hotel should bear part of the responsibility; Without the consent of the hotel, the hotel fire spray head burst, and the hotel not only has no responsibility, but also can ask the wedding company and the owner to compensate for the loss caused by the bursting of the fire spray head;

2, mental loss, this joy is hard to claim.