What kind of formal clothes should I wear to attend the training graduation ceremony in a five-star hotel?

Our company is located in the Intercontinental Hotel. You must have heard of it. Formal dress is quite simple. Generally speaking, white short-sleeved shirts don't look good with black A-line skirts and sandals at this time. It is best to wear leather shoes, shallow shoes worn by women in summer. White and black skirts look great with black or white shoes. As for how to match, it depends on which style is suitable. There is little difference between shoes and skirts, mainly shirts.