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

ASSISTANT: hello. Can you tell me, What type of movies do you like? , USER: I like thrillers. , USER: And fantasy movies. , ASSISTANT: okay. Great. Why do you like fantasy movies? , USER: They are fun and I escape this, I guess. , USER: They're pretty, usually, and interesting premise. , ASSISTANT: so do you like movies like harry potter?
harry potter