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

Ex Input:
Sentence1: Hi. Can you please help me find a restaurant that serves food from singapore ? I'd like it to be on the East side of town if possible. Sentence2: Thank you for using the Cambridge restaurant system. Goodbye. Sentence3: Yu Garden is located on the east part of town. Would you like the telephone and address? Sentence4: What is the address, phone number, and postcode? Sentence5: Can you help me find some Chinese food then? Sentence6: There are no restaurants serving Singaporean food on the east part of town. Sentence7: Thank you, goodbye. Sentence8: Yu Garden is located at 529 Newmarket Road Fen Ditton, C.B 5, 8 P.A, and the number is 01223 248882. Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: I have two indian restaurants in the east, and one each in the north and west. Where do you want to dine? Sentence2: I've successfully booked your table. The reference number is GK41EYSD . Sentence3: I would like to go to a nice nightclub Sentence4: I need a restaurant that serves Indian food in the moderate price range Sentence5: Yes. I would like a reservation for 1 person at 13:15 on Thursday. Sentence6: No thank you, that is everything that I need. Sentence7: We have ballare that's night, it's in the city centre. Sentence8: Okay, what is the address and entrance fee for it? Sentence9: Thank you and enjoy your stay. Sentence10: Ballare is Heidelberg Gardens, Lion Yard, postcode cb23na and the entrance fee is 5 pounds. Is there anything else I can help you with? Sentence11: I am also going to need a taxi that goes from Ballare to Meghan and gets me to Meghan by 13:15 for my reservation. Sentence12: I would like the one in the west. Sentence13: OK, I have a grey skoda taxi booked for you. The Contact number is 07058412849. Is there anything else I can help with today? . Sentence14: Meghan is in that area and serves Indian food would you like to make a reservation Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: No, that's it. Goodbye! Sentence2: There are 8 restaurants. Eraina, Michaelhouse cafe, hotel du vin and bistro, galleria, de luca cucina and bar, riverside brasserie, darrys cookhouse and wine shop, the river bar steakhouse and grill Sentence3: Please provide postcode and address for Eraina. Sentence4: I'm looking to have some European food tonight for dinner. Something very traditional in the centre of town should be good. Can I get a list of options? Sentence5: I'm glad I could help. Have a nice day. Good bye. Sentence6: The postcode is cb23rh and address is Free School Lane City Centre. Is there anything else I can help with? Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System