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

Sentence1: I prefer a gueshouse. Sentence2: I'm glad I was able to help you today! Thank you for contacting Cambridge TownInfo centre. Enjoy your trip! Goodbye! Sentence3: There are many places to stay that offer free parking. Do you prefer a guesthouse or hotel? Sentence4: No, but can you help me find a restaurant? I think it's called Meghna. Sentence5: Ahhh.. great, thanks! That's all I needed! Sentence6: Yes, they are at 154 chesterton road and can be reached by phone at 01223353888. Would you like me to book you? Sentence7: Great can you tell me the star rating of the hotel as well? Sentence8: Yes, that is a moderate priced indian restaruant in the west. Sentence9: Acorn Guesthouse has a star rating of 4. Would you prefer other options or would you like for me to book you? Sentence10: That's it! Can you give me the phone number and area, please? Sentence11: Can I please have their address and phone number? Sentence12: The acorn guest house would fit your needs would you like me to make a reservation for you Sentence13: Meghina's phone number is 01223727410. They are located in the west. Sentence14: Place to stay the night, with free parking and it doesn't need free wifi. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: Yes I would. Sentence2: The phone number is 01223312112. Do you need the postcode? Sentence3: You're welcome, and you have a nice day as well! Sentence4: Can you tell me anything about cafe jello gallery? Sentence5: I think that could work please make a booking for 6 people Sentence6: There are 10 trains that day. Is there a particular time you'd like to leave or arrive? Sentence7: i would like to arrive after 2:00 in the afternoon. Sentence8: Yes, the Cafe Jello Gallery is a museum located at 13 magdalene street in the west side of town. Would you also like their phone number? Sentence9: Booking was successful! Your reference number is GXIE5O8F . You have to pay 26.4 GBP at the station. Sentence10: No, but I am looking for a train from Ely on Thursday. Sentence11: Thank you very much that is all I needed. Have a good day. Sentence12: We have the TR0813 that arrives at 11:52 on thursday. Does that work? Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

Sentence1: There are 4 places to swim in town. Does the area matter? Sentence2: Parkside Pools is in the centre. That would be closest to Saffron Brasserie. Sentence3: Oh yes! Please I need a reservation for 5 people on Saturday at 18:00. I need a reference number too. Sentence4: Sure, the reference number is PSIDGHAC . Sentence5: The postcode is cb11ly. Sentence6: Saffron Brasserie is an expensive Indian restaurant in the centre. Would you like me to make reservations? Sentence7: Certainly. What time would you like the taxi to fetch you from the restaurant? Sentence8: I am also looking for places to go while in town. Do you have a swimming pool? Sentence9: Hi, I am looking for information on a restaurant it's called saffron brasserie. Sentence10: I would like a taxi to pick us up from the restaurant at 20:00. Can you please give me the contact number and car type of the taxi? Sentence11: You're welcome. Have a great day! Sentence12: No, that's it. Thank you for your service! Sentence13: Okay that will work, what is the postcode? Sentence14: Absolutely. You will be picked up at the restaurant by a black Lexus. Here is your contact number: 07511821304. Anything else I can help with? Sentence15: I'm not particular on the area; is there one near Saffron Brasserie? Sentence16: Great, thank you. Can you also help me with getting a taxi from the restaurant to the pool? Question: Who has spoken the sentence 15? (A) User (B) System

Answer: (B) System