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

Ex Input:
Sentence1: It is in the centre part of town. Sentence2: That's all. Thank you, goodbye! Sentence3: What is its phone number? Sentence4: Okay, thanks. And what area is it in please? Sentence5: Michaelhouse Cafe is at St. Michael's Church Trinity Street City Centre. How does that sound? Sentence6: I am looking for a restaurant in the expensive price range that serves Belgian food. Sentence7: The phone number is 01223 309147. Sentence8: I have nothing available meeting your request, would you like to try a different price range or another type of cuisine? Sentence9: What is the address of the restaurant? Sentence10: Yes, is there any expensive European eateries? Sentence11: That's good, thanks. Sentence12: Would you like anything else? Sentence13: Yes, there are 4 expensive restaurants serving european food. Which area would you like? Sentence14: your welcome. thanks for calling Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I am looking for Mediterranean food in the center of the city. Sentence2: I show 3 available. 2 are in the expensive range and 1 is cheap. May I book a table for you? Sentence3: Thanks for calling. You have a great day! Sentence4: I have booked you at the Shiraz Restaurant for 7 people Saturday at 15:45. Your table will be reserved for 15 minutes. Sentence5: I'd like the expensive range and I'd like to book a table for 7 people on Saturday at 15:45. Sentence6: Great. Thanks so much! Sentence7: Thank you so much. That is all I need today. Have a great evening. Sentence8: Sure. Your reference number is MSV3UPS2 . You will likely need it. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Is Milton Road Chesterton the full address for Hakka? I also need a train to cambridge. Sentence2: How about a chinese restaurant in the same area, same price range? Sentence3: I'm sorry, there are no restaurants that meet your criteria. Would you like to broaden your search? Sentence4: Thank You. Have a good day, goodbye. Sentence5: The phone number is 01223568988 and the postcode is cb41jy. Is there anything else you would like for me to do? Sentence6: I need to go from stevenage to cambridge on Friday, leaving after 8:00. Sentence7: Great thank you very much that should be all Sentence8: There are 8 trains the closest one to 8:00 leaves at 9:54, would this work for you? Sentence9: Yes, that's the full address. For the train, where are you coming from and on what day and time? Sentence10: I only need the phone number and postcode. Sentence11: I would not. I prefer this place to be expensive, have modern eclectic tastes, and be located north. Sentence12: Yes, you're all set on TR0601 at 11:54 with reference number CXZ3WY2N . The total fee of 76.8 GBP is payable at the station. Sentence13: I'm looking for a Modern Eclectic place to dine in the Cambridge North End tonight. Sentence14: I'm sorry, there are no restaurants that meet your criteria. Would you like to try a different part of town? Sentence15: No problem. I have Hakka at Milton Road Chesterton. How many would you like me to reserve for? Sentence16: Yes, that will work. Can you place a booking for 6 people on that train and provide a reference number? Question: Who has spoken the sentence 10? (A) User (B) System

Ex Output:

Answer: (A) User