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

[EX Q]: Sentence1: Can you check a swimming pool in the west of the city? Sentence2: Yes, there are no swimming pools located to the west of your city. Thank you, if you need help with anything else, contact us again. Sentence3: No thank you, that's all I needed. Sentence4: I have 3 hotels and 2 guesthouses in town centre. Would you like a cheap price range or expensive? Will you also need parking? Sentence5: Okay! Goodbye! Sentence6: I would prefer a guesthouse, and it does not need to include internet. Sentence7: If you change your mind and need a booking, we'll be here. Thanks for using our service! Sentence8: I'd prefer one in the same part of town as my hotel, are you sure there isn't one? Sentence9: We currently do not have any shown attraction in that area you are looking for. Are there any other further things I could assist with? Sentence10: Goodbye. And feel free to contact us if there's any other information you need, as well. Sentence11: The alexander bed and breakfast is a guesthouse in town centre in the cheap price range with a 4 star rating. Would you like to book a room? Sentence12: I am looking for a place to stay in the centre in Cambridge. Sentence13: I'm not showing a swimming pool in the East, but there are 2 in the North, will that work? Sentence14: I am also looking for an attraction, a swimming pool Question: Who has spoken the sentence 13? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: I can get you a ticket on the tr8495 it will get you there by 10:55, or is that too early? Sentence2: I'm sorry I changed my mind. I just need the price per ticket please. Sentence3: I'll be going from Cambridge to Norwich. Sentence4: Yes. Please reserve for 5 people on Monday at 14:00. Sentence5: Have a great day and enjoy your time in cambridge. Sentence6: No that sounds good,please book it for me Sentence7: I also need a moderate restaurant in the town centre that serves European food. Sentence8: The price is 17.60 pounds sterling. Can I help with anything else? Sentence9: How many tickets will you be needing? Sentence10: Booked. The table will be reserved for 15 minutes. Reference number: XLZVMYRL . Sentence11: I need to take a train to here. I want to arrive by monday at 17:15. Sentence12: Great. I can't wait. Thanks! Goodbye! Sentence13: The riverside brasserie serves modern european food. Would you like to make a reservation today? Sentence14: Okay, there are plenty of options. Where are you headed? Question: Who has spoken the sentence 11? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Train TR0031 departs Stansted Airport for Cambridge at 09:24 and arrives at 09:52. Would this be ok? Sentence2: Sounds great! Can I get tickets for 3 people? Sentence3: There are 5 colleges there. Churchill college, Clare College, Clare Hall, Magdalene College and Queens' College Sentence4: I've booked you 3 tickets. Your total is 30.29 pounds and the reference number is 51M2VN7D . Sentence5: Stansted airport. Also, if I could arrive by 11:00 that would be great. Sentence6: I am planning to visit cambridge and would like a train leaving on thursday. Sentence7: Great. I am also looking for colleges to visit in the west. Sentence8: No, that is all that I needed. Thank you so much for your help! Goodbye. Sentence9: You're so welcome! Have a great day! Sentence10: No problem. Which station will you be departing from? Sentence11: Churchill College is on Storey's Way, their postcode is cb30ds and phone number is 01223336233. It's free to get in. Is there anything else you'd like to know? Sentence12: Can I get more information on the first one? Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]:
Answer: (B) System