Given the task definition and input, reply with output. Find the movie name from the given conversation. If the movie name is not found give output as "unknown"

ASSISTANT: can you tell me what type of movies you like? , USER: I like action movies. , ASSISTANT: ok, what about action movies do you enjoy , USER: I like the high-driven action, and it takes me away from reality. , ASSISTANT: got it, can you name a specific movie you liked? , USER: I really liked The Avengers.
The Avengers