Find the movie name from the given conversation. If the movie name is not found give output as "unknown"
Q: ASSISTANT: What type of movies do you like? , USER: I like horror movies. , ASSISTANT: Why is that? , USER: I just like the psychological parts of it. I like the psychological horrors over the gory stuff. , ASSISTANT: What is one of your favorite movies? , USER: One of my favorite movies is 1408 by Stephen King. Well, based on a Stephen King book.
A: 
1408