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

Sentence1: Yes sir! Soul tree nightclub is a good one. they are at 8 market passage, postal is cb23hx and phone number is 01223519224, is there anything else that I can assist with? Sentence2: Pick a good one for me. I need the phone number and postcode for it too. Sentence3: Sala Thong is an expensive Thai place in the west. They're located at 35 Newnham Road, cb39ey. Sentence4: Can't wait to come party at one of your nightclubs in town. Sentence5: There are 5 nightclubs in the centre and one in the south. Would you like more information on one of them? Sentence6: Thanks, that is all for today. Goodbye. Sentence7: You're welcome, have a good day. Sentence8: Can you give me information on a restaurant called Sala Thong? Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

Sentence1: The Warkworth House is a guesthouse in the East, it's moderately priced and rated 4 stars. I would love to assist you in booking a room if you would like? Sentence2: There are 5 parks in town. Did you have a certain area you prefer? Sentence3: It's actually not a museum, but considered an architecture attraction. Were you interested in a specific type of attraction? Sentence4: Cambridge university botanic gardens is a beautiful park. Its located at bateman street, costs 4 pounds to get in. Phone 01223336265, cb21jf. Will you need transportation? A train, taxi or bus? Sentence5: have a good day Sentence6: No, Is that a museum or a church. Sentence7: Oh, I suggest my favorite! It's Holy Trinity Church, beautiful architecture, and it's located on Market Street. It's free. Would you like their phone number? Sentence8: I have you at the Warkworth house. Would you like to change the reservations? Sentence9: i am looking for somewhere to go in the centre of Cambridge Sentence10: I think we would like it to be in the centre of town please. Sentence11: Yes your reference number is 53LJQ4H6 . Sentence12: No. That's perfect! Thanks for your help. Good bye. Sentence13: Yes, please. Can you reserve a room for Monday for 5 people, 3 nights? Sentence14: no. also find me a hotel by the name warkworth house Sentence15: Actually, I will need to book lodgings as well. Sentence16: Thanks! Can you suggest to me something to visit that isn't a church or architecture? Maybe a museum or a park? Question: Who has spoken the sentence 15? (A) User (B) System
Answer: (B) System

Sentence1: Sure. how many will be traveling? Sentence2: The Cambridge corn exchange is a theatre and the post code is cb23qe. Would you like any more information? Sentence3: No problem! Have a great day. Sentence4: Okay, can you find attractions near the centre? Sentence5: thank you, though there are many choices there isn't a 21:15 so I guess I will take the 21:40 on Friday. Sentence6: It's just me. Can I have the price, travel time, and train ID? Also, do you have any places I can go when I get there? Sentence7: Could you suggest me one? Also let me know of what type of attraction it is and the place's postcode. Sentence8: Thank you, Enjoy the Cambridge Exchange! Sentence9: Wonderful help, thanks Sentence10: Unfortunately no. The earliest that day departs at 21:40. Sentence11: Okay. Can you book that for me please? Sentence12: Is there a train leaving before that? Sentence13: Thanks, I have all I need. Have a nice day. Sentence14: Price is 10.10 pounds, the travel time is 28 minutes, and the train ID is TR4067. I'm sorry, but I don't see any attractions at the Stansted Airport. Sentence15: There are 44 attractions near the center of town. Is there a certain type you're looking for? Sentence16: I'm wondering if there is a train leaving at 21:15 that will take me to the Stansted Airport. Question: Who has spoken the sentence 11? (A) User (B) System
Answer: (B) System