A direct request is just a specific sort of a sequence to complete. There are extra training steps involved in ChatGPT that are designed to make it particularly

A direct request is just a specific sort of a sequence to complete. There are extra training steps involved in ChatGPT that are designed to make it particularly good at predicting sequences that look like semantically valid, coherent dialogue, but fundamentally there's nothing special about dialogue. It's just tokens after tokens. For example, even a fairly simple model trained on only play and movie scripts would be naturally good at completing pieces of dialogue because that would be all that it knows!