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

[EX Q]: ASSISTANT: Can you tell me what types of movies you enjoy watching? , USER: drama, fantasy, documentaries. Sometimes family, but that's about it. , ASSISTANT: And what do you like about those types of movies? , USER: The storytelling if it's pretty good. I like how detailed and creative that people can get with different characters and different plot making, so I think you can really make up a lot of stuff. , ASSISTANT: Alright, what's one of your favorite movies? , USER: Well, Back to the Future, the whole trilogy, I guess.
[EX A]: Back to the Future

[EX Q]: ASSISTANT: hello. Can you tell me, What type of movies do you like? , USER: I like comedy movies. , ASSISTANT: OK. Great. Why do you like comedies? , USER: They're funny to watch, and I just like to watch something like that at the end of a hard day. , ASSISTANT: Can you tell me the title of one of your favorite movies? , USER: Rush Hour. It's one of my movies I like to watch.
[EX A]: Rush Hour

[EX Q]: ASSISTANT: What type of movies do you like? , USER: I guess thrillers or kind of mystery movies, things where people are trying to solve a mystery or an issue. , ASSISTANT: do you like twists at the end? , USER: Half the twists are good, but it's now I don't I'd rather have no twist than a bad twist. , ASSISTANT: what about scary movies? do you like these types of movies? , USER: Not particularly. , ASSISTANT: What's one of your favorite type movies? , USER: Okay, what type of movie? , USER: Like I said, I guess mystery or thrillers. , ASSISTANT: what is one of your least favorite type of movies?
[EX A]:
Thor