Detailed Instructions: Find the movie name from the given conversation. If the movie name is not found give output as "unknown"
Q: ASSISTANT: can you tell me what types of movies you like? , USER: I like dramas quite a bit. , ASSISTANT: ok, what about dramas do you like? , USER: Usually the story, they're interesting. And it's easy to get involved with them. Just cuz it's an important story, it's not just mindless action or just something that doesn't matter. , ASSISTANT: got it, can you name a specific film you enjoyed? , USER: Shawshank Redemption was really good.
A:
Shawshank Redemption