Find the movie name from the given conversation. If the movie name is not found give output as "unknown"

ASSISTANT: i'd like to discuss your movie preferences. , USER: I like fantasy movies and animation movies , ASSISTANT: what do you like about these genres? , USER: I liked it , USER: I like that they let you explore different worlds, different places, and realities that are impossible in the real world. And about animation, I think it's a really interesting medium to tell stories in a very unique way. , ASSISTANT: very nice! is there any particular movie that you've liked a lot? , USER: Howl's Moving Castle is one of my favorite movies.
Howl's Moving Castle