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

[Q]: Sentence1: I have the TR4849 train leaving Ely at 13:35 on Monday. Sentence2: How about cityroomz? It is located in the centre of the city, is moderately priced, has 0 stars, and has free wifi. I think it would be perfect ofor you! Sentence3: Perfect, could you also assist me in finding a place to stay? Sentence4: What will be my arrival time in Cambridge and what is the ticket price, please? Sentence5: You're welcome. Have a great day. Good bye. Sentence6: You are booked and your reference number is QUJQMRK7 . Can I help you with anything else? Sentence7: That is everything, thank you for your help. Sentence8: From where will you be departing? Sentence9: I'm looking for a train that goes to cambridge, leaving after 12:30 on monday Sentence10: I am leaving from Ely. Sentence11: Oh I'm not picky on the area. I definitely need free wifi, moderate price, and 0 stars though. Sentence12: That's perfect I need it booked for 8 people for 5 nights starting on Monday. Sentence13: I sure can. What area would you like to stay? Sentence14: The price is 4.40 pounds. You will arrive at 13:52. Question: Who has spoken the sentence 2? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: I am looking for a place to stay Sentence2: Sala Thong serves Thai food and is located at 35 Newnham Road, Newnham cb39ey. Their phone number is 01223323178. Can I help with a booking? Sentence3: Thank you! Good bye. Sentence4: There are a lot of guesthouses that meet that criteria. Do you want to stay in a particular area? Sentence5: let's book it for wednesday please. Sentence6: Yes. Where is a good expensive restaurant in the West area of town? Sentence7: What's the address, postcode and phone number of the thai restaurant? Sentence8: I think we're jumping way ahead of ourselves here. Let's start afresh. Please get me the address to the acorn and then we can proceed with getting a taxi Sentence9: There's british, european, indian, and thai. Sentence10: What day and time would you like me to reserve the restaurant for? Sentence11: No, I don't care about the location. I do want a 4 star place though. Sentence12: I'm looking for a guesthouse with free parking and free wifi. Sentence13: I will definitely be able to help you with that. Did you want a hotel or a guest house? Sentence14: Yes can you please book that for me? Sentence15: Can you give me some examples of the type of cuisine that is available? Sentence16: There are nine expensive restaurants in the west, is there a particular type of food that you are interested in? Sentence17: Thank you for calling Cambridge TownInfo centre. It was a pleasure to help you. Sentence18: The acorn guest house has a 4 star rating and is in the moderate price range. It is in the north area. Would you like to reserve a room? Sentence19: The address to acorn is 154 chesterton road. Sentence20: How many people will the booking be for and what time would you prefer the booking to be at? Question: Who has spoken the sentence 14? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: The trip is 49 minutes. Sentence2: Thanks so much. And yes, could you possibly point me to some entertainment in the town centre? Sentence3: Fantastic. May I have the postcodes for those museums as well? Sentence4: I'm looking for a train from cambridge to stevenage. Sentence5: Unfortunately there isn't anything in the town centre that's entertainment, do you have an alternate preference or area you'd like? Sentence6: I can get you tickets for friday. The train departs the station at 05:21, is that time suitable for you? Sentence7: Thanks, that's all I need today. Goodbye! Sentence8: Is there anything else I can help you with? Sentence9: Can I get the addresses of both? Sentence10: Are there any museums in the centre? Sentence11: Castle galleries is at unit su43, grande arcade, saint andrews street. Primavera is at 10 king s parade. Sentence12: How long is the trip? I might like to leave somewhat later. Sentence13: Okay, I've booked you 6 tickets on train TR2515, which leaves at 05:21 and arrives at 06:10 in Stevenage. Your reference number is 1RMGSH2B . Can I help you with anything else? Sentence14: Castle Galleries is cb23bj and Primavera is cb21sj. Sentence15: There are 11 museums in the centre. Would you like to visit the Castle Galleries or Primavera perhaps? Both are free. Sentence16: Excellent. Book it for 6 people and I'd like to arrive before 12:45. Question: Who has spoken the sentence 11? (A) User (B) System
[A]:
Answer: (B) System