You will be given a definition of a task first, then some input of the task.
Find the movie name from the given conversation. If the movie name is not found give output as "unknown"

ASSISTANT: What kind of movies do you like? , USER: I like historical dramas. , ASSISTANT: Why historical dramas? , USER: I like seeing the costumes and scenery from a different time period. , ASSISTANT: I see. Can you tell me a specific historical drama you liked that i should watch? , USER: I liked watching Elizabeth.
Output:
Elizabeth