You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Input: Consider Input: Sentence1: Hi, I just had a fight with someone regarding an automobile accident we had and I need to contact the police! Sentence2: I have the parkside cambridge police telephone 01223358966. Sentence3: always welcome. at your service Sentence4: Thank you, Goodbye Sentence5: I'm not sure where you are, but the police postcode is CB11JG. Sentence6: Can I get the zip code or postal code for the area I'm in right now? Question: Who has spoken the sentence 3? (A) User (B) System

Output: Answer: (B) System

Input: Consider Input: Sentence1: Goodbye. Sentence2: Nandos sounds great. Thank you. Sentence3: Goodbye. Sentence4: thank you good bye Sentence5: Yes, I'd like a restaurant that serves portuguese food. Sentence6: nandos is the only restaurant i can find in the south that serves portuguese. Sentence7: Hi. I'm trying to find a good restaurant in the south part of town. Sentence8: There are several good restaurants in the south part of town. Do you have a preference for the type of food or price range? Question: Who has spoken the sentence 2? (A) User (B) System

Output: Answer: (A) User

Input: Consider Input: Sentence1: Alright, I have booked the worth house for 3 people for 3 nights starting sunday, your reference number is HVD2IBXM . Is there anything else I can help you with? Sentence2: Yes. The Worth House meets your criteria. Would you like to book a room? Sentence3: Booking was successful, the total fee is 52.8 GBP payable at the station .Reference number is : H829GED4 . what else can i do for you? Sentence4: I'm departing from Cambridge heading to Norwich. I'll need it booked for 3 people. Sentence5: are you looking for something other than the allenbell we discussed earlier? Sentence6: The allenbell fits that criteria. Would you like some more info? Sentence7: Do you need me to book any sort of travel? Sentence8: To or from Cambridge/Norwich? Sentence9: Could you look up a hotel based on what I ask? North area, 4 stars...please. Sentence10: Are there any that has free wifi? Sentence11: Yes, please. I'll need it for 3 people, 3 nights, and we will be arriving on Sunday. Sentence12: Ok great, that is all that I need. Sentence13: alright, call me if you need anything. Sentence14: There are no places available in that area. Is there a different area that you would prefer? Sentence15: I am looking for a cheap room in a guest house. Sentence16: am looking for a place to stay. The hotel doesn't need to include internet Sentence17: Not right now, I also need a train going to Cambridge to Norwich on Wednesday and leave after 19:15 Sentence18: No , thanks for the help! Question: Who has spoken the sentence 12? (A) User (B) System
Output: Answer: (A) User