instruction:
Find the movie name from the given conversation. If the movie name is not found give output as "unknown"
question:
ASSISTANT: What kind of movies to you like, and why do you like this type of movie? , USER: I like a science fiction movies, and I like them because they're creative and provide nice visual effects. , ASSISTANT: Can you name a particular movie that you like? , USER: Avatar
answer:
Avatar

question:
ASSISTANT: hello. Can you tell me, What type of movies do you like? , USER: I like thrillers. , ASSISTANT: OK. Great. Why do you like thrillers? , USER: cause I like to watch movies where they're not always predictable. , ASSISTANT: so do you like movies like dunkirk?
answer:
dunkirk

question:
USER: Hi. , ASSISTANT: Do you like movies like Star Wars?
answer:
Star Wars