Given the task definition and input, reply with output. Find the movie name from the given conversation. If the movie name is not found give output as "unknown"

ASSISTANT: what kind of movies do u like to watch , USER: I like horror movies. , ASSISTANT: why is that , USER: They're scary. , ASSISTANT: i know horror movies are scary , ASSISTANT: why else do u like them , USER: I like a murder and mystery. , ASSISTANT: in order for me to learn, i need someone who can be more descriptive about why they like the things they like , USER: It's Sci-Fi and I like the special effects. , ASSISTANT: name a movie that fits one of the categories you mentioned, and tell me why you liked that kind of movie
the Nightmare Before Christmas