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

[Q]: Sentence1: It doesn't matter, I just need to get there. Sentence2: I am sorry but that time is not available. Would you like to try another time or day perhaps? Sentence3: There is a restaurant called restaurant alimentum that meets your criteria. Sentence4: It's all booked, you're looking for a black volkswagen and their contact number is 07263669645. Sentence5: As a matter of fact, it appears all of the gastropubs in Cambridge have closed. Is there anything else that interests you? Sentence6: Have a great day! Sentence7: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 8HB62Z6W . Is there anything else I can help you with? Sentence8: Sure. What time would you like to leave the restaurant? Sentence9: I am looking for a gastropub in the south. Sentence10: The address is cambridge leisure park, clifton way. Can I do anything else for you? Sentence11: Yes, I'd like to see some entertainment near the restaurant. Could you recommend me something good? Sentence12: Are there any Gastropubs in town? Sentence13: Yes, it is. Nusha is in the South as well. Sentence14: Yes, I would like to book a taxi from the restaurant to the entertainment. Sentence15: How about Tenpin in the south? Sentence16: Great, thank you so much for your help! That's everything I'll need today! Sentence17: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence18: That will do. Please get me their address. Sentence19: How about a modern European cuisine in the south area? Sentence20: Let's book that for 12:45 on Tuesday. It will be for 7 people. Sentence21: I'm sorry I couldn't find any Gastropubs in the South. Is there another type or area which you would like to try? Sentence22: Splendid! Thank you for all your help. That's all I need. Goodbye. Sentence23: Could you try 11:45 please? Sentence24: Is it located near Alimentum? I'm looking for something in the same area as the restaurant. Question: Who has spoken the sentence 4? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: Graffiti sounds good. I actually need that reservation for 5 people at 20:00 on Wednesday. Can I have the reference number for that? Sentence2: There are two trains that would work. One arrives at 07:07 and the other arrives at 01:07. Which one would you prefer? Sentence3: I would recommend Graffiti. It is a bit expensive, so if you want something moderately price there is also Saint Johns Chop House. Sentence4: Great, thanks! That's all I needed right now! Sentence5: Alright, I've booked a train for your group, the reference number is AOIMGBHK, and there will be an 83 GBP fee at the station. Sentence6: What time would you like these reservations? Sentence7: I need to find a British restaurant in West Cambridge. Sentence8: i can definitely do that, how many tickets would you like? Sentence9: No, can you recommend a favorite? Sentence10: I would also like a train departing from london liverpool street and arriving in Cambridge at 09:00 on the same day. Sentence11: Please book 2 tables for 8 people on friday also i need train tickets for 8 people. Sentence12: There are multiple options for you. To narrow them down what price range do you have in mind? Sentence13: Can you book the train that arrives at 07:07 that one would work great. I need the reference number as well. Sentence14: it's for the same group of people Sentence15: Booking was successful. The table will be reserved for 15 minutes. Reference number is : YYPPDY56 . anything else i could help you with? Sentence16: You're welcome. Have a great day. Question: Who has spoken the sentence 11? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: We can book hotels, restaurants, trains, and taxis for you and provide information about places, but we do not actually call attractions them for you ourselves. Sentence2: You're welcome. Have a great day. Sentence3: SI booked you at the university arms hotel. Your reservation is POY0JCRA on Thursday. Sentence4: Yes, there are several did you have a specific area in mind? Sentence5: Can you call them for me please? You are supposed to be customer service? Sentence6: What area of town would you like to stay? What price range? Sentence7: I would recommend the university arms hotel. It is expensive and in the centre. Would you like me to book that for you? Sentence8: No. I would just like you to recommend one and give me the area, number and how much it cost to get in. Sentence9: Thanks! That is all I need. Sentence10: I am looking for a 4 star hotel in the Centre. Internet is not necessary but I will accept one that has it. Sentence11: i'm looking for a place to stay Sentence12: That sounds good can you book that for 8 people for 3 nights starting thursday? Sentence13: I can't help you with the cost, you would have to call about that. I recommend Parkside Pools in the centre. You can call them at 01223446100. Sentence14: Are there any swimming pools that I can go to in Cambridge? Question: Who has spoken the sentence 5? (A) User (B) System
[A]:
Answer: (B) System