What is dining fairy?

As an AI language model, I am not aware of any specific entity called the "dining fairy." However, fairies are often represented in folklore and fairy tales as mystical beings associated with nature and magic. In some stories, fairies are also said to be fond of food and drink, and may even leave tiny treats or gifts for humans who show them hospitality. It is possible that the term "dining fairy" is a reference to this concept of a benevolent, food-loving fairy. Alternatively, it could be a made-up term used in a specific context, such as a restaurant or food blog. Without more information, it is difficult to provide a more detailed answer.