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

Sentence1: The TR3370 will take you to norwich. Do you need a ticket? Sentence2: Well I have many things to do such as architecture visits or museums or theaters. Anything sound intriguing to you? Sentence3: There are 13 to choose from. Might I suggest the Pembroke College. They have free entrance and are located on Trumpington Street. Sentence4: The number is 01223338100. Sentence5: cool, thanks dude Sentence6: The post code is cb21rf. Can I help with anything else today? Sentence7: I need a train to norwich on Sunday. Sentence8: Yes I would like to go to a college. Sentence9: Thank you! That will be all for today! Sentence10: Do you want tickets? Sentence11: yes if it leave after 19:30. thanks Sentence12: No, I don't need to book now. On the other hand, I'm looking for something to do in the centre of city. Sentence13: I am sorry that os not leaving at the correct time but I have train TR9083 leaving at 19:55. Sentence14: Can I have the postcode? Sentence15: You're welcome. Please reach out to us again, if we can be of further assistance. Good-bye. Sentence16: Yes, can I also get the phone number for Pembroke College? Question: Who has spoken the sentence 13? (A) User (B) System
Answer: (B) System

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
Answer: (B) System

Sentence1: Great and welcome! How about friday at 05:17? Is that time acceptable? Sentence2: I am looking for a train going to Cambridge. Sentence3: yes, that is perfect. Sentence4: You're welcome! Have a great trip! Sentence5: I have not been myself but hear it is nice. It serves Indian food on the west end of town. Would you like me reserve a table for you? Sentence6: Nope, that takes care of everything. Thank you! Sentence7: I've booked you 2 tickets on train TR5219 from london kings cross to cambridge on friday. The total fee is 47.2 pounds and your reference number is DVRX2C6V . Sentence8: Yes please, 2 people at 20:30 on sunday. Can I also get a reference number? Sentence9: Yes, please. Two tickets. Sentence10: I was able to book that table for you (Ref #UU2PWIV7). Can I help you with anything else today? Sentence11: It will cost 23.50 pounds and the travel time will be 51 minutes, would you like to book it? Sentence12: Thanks. A friend told me about a restaurant called the rice boat. Do you know it? Question: Who has spoken the sentence 1? (A) User (B) System

Answer: (B) System