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

[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


[Q]: Sentence1: Booking was successful for the bridge guest house. Your Reference number is : LBEOV690 . Sentence2: Yes please. Which is the cheapest? Sentence3: Thank you. Have a nice day. Sentence4: No. I would like to make a reservation for Wednesday for 3 nights and 8 people. I will also require a reference number. Sentence5: I was unable to book your stay at any of the three hotels. Would you like to change the length of your stay or change the day? Sentence6: There are 2 hotels with a 3 star rating and free parking. Would you like to stay in the centre or south? Sentence7: Sorry, I was mistaken. There are 3 guesthouses matching your request. One each in the south, north, and west. Would you like to book one? Sentence8: Thank you. Have a nice day. Sentence9: Can you please try a 2 day stay. Sentence10: I can only tell you they are all in the moderate price range. Do you have any other preferences? Sentence11: I am looking for a hotel with a 3 star rating and free parking Sentence12: Either is fine. I'd like a guesthouse. Question: Who has spoken the sentence 5? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: i am leaving for cambridge and it should arrive there by 20.45 Sentence2: I just need it for one night for one person please. Can you tell me which area it is in? Sentence3: Thank you I also need a place to stay that is a guesthouse with free parking. Sentence4: That works. What's the phone number, area, and if they have internet? Sentence5: It is in the south area. Sentence6: aylesbray lodge guest house is in the south of town, their phone number is 01223240089 and they have internet Sentence7: I have 19 trains available. Could you narrow it down to a specific destination and departure time please. Sentence8: Thank you very much, I think that's all I needed. Sentence9: I'd be happy to. When would you like to begin your stay, and for how many nights would you like rooms reserved? Sentence10: I have several results matching your request. What price range and area of town would you prefer? Sentence11: I don't have a preference for area, I would just like it to have 4 stars and a moderate cost with free parking. Sentence12: Are there any trains leaving from Stansted Airport on Thursday? Sentence13: There are 9 options for a guesthouse with your requested price and amenities. The Aylesbray Lodge Guest House is lovely this time of year, if you're interested? Sentence14: Could you book it for me? Sentence15: The train that arrives the closest to your preferred time is TR2286 which arrives at 19:52. Does that work for you? Sentence16: You are welcome. Have a good day! Sentence17: I would like to make a booking for TR2286 for 1 person. Sentence18: Ok, I've booked you 1 ticket on TR2286. The fee of 10.10 GBP is payable at the station. Your reference code is QHKC3MOF . Anything else I can do? Question: Who has spoken the sentence 17? (A) User (B) System
[A]:
Answer: (B) System