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

Positive Example 1 -
Input: ASSISTANT: What kind of movies are you drawn to? , USER: I am drawn to romances. , ASSISTANT: Have you seen Fifty Shade of Grey?
Output: Fifty Shade of Grey

Positive Example 2 -
Input: ASSISTANT: generally speaking what type of movies do you watch , USER: I like thrillers a lot. , ASSISTANT: thrillers? for example? , USER: Zodiac's one of my favorite movies.
Output: Zodiac

Negative Example 1 -
Input: ASSISTANT: what kind of movies do you generally like?
Output: like

Negative Example 2 -
Input: ASSISTANT: hello. What type of movies do you like? , USER: I usually like action drama movies. , ASSISTANT: what do you like about those genres? , USER: Well, I like watching fast paced movies and I also like watching movies that have well developed story lines and characters. , ASSISTANT: okay. so do you like movies like star wars?
Output: Saw

Now complete the following example -
Input: USER: Hello. , ASSISTANT: what kind of movies do you like , USER: I like action movies. , ASSISTANT: why do you like action movies , USER: Well, they're usually entertaining, and there's a lot going on. , USER: soft and great movie scores , ASSISTANT: can you name a particular movie that you like , ASSISTANT: what about this movie that you like in particular , USER: Well, it was really interesting. It had , USER: had the bad guys, had a lot of danger.
Output: 


Output: Nightmare on the Elm Street