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

Q: Sentence1: I'm looking for a train that departs cambridge on saturday. Any ideas? Sentence2: I would like to leave after 16:30 and would like to go to kings lynn. Sentence3: Yes please and I'll also need the postcode. Sentence4: I am not showing any hotels with 1 star that have free parking, would you like to look for something else? Sentence5: We have three 4 star hotels that provide free internet and free parking. Is there an area you would prefer to stay at? Sentence6: the postcode is cb236bw. it is a hotel in the cheap price range. when would you like to stay from, how many people, and for how long? Sentence7: Alright, are there any 1 star hotels that offer free parking? Sentence8: There are 202 trains that leave Cambridge on Saturday. Sentence9: I recommend The Cambridge Belfry, a cheap 4-star hotel on the west side. Would you like to reserve a room? Sentence10: I'm interested in the earliest one. What is the train ID? Sentence11: Sorry, no, I do not see any one star hotels with free wifi. Would you like to try another option? Sentence12: That's the TR2840. Sentence13: That was all I needed. Thank you. Sentence14: Are there any with 4 stars? Sentence15: There are 7 trips that would work. The earliest leaves at 17:11 and the latest leaves at 23:11. The train ride will be 47 minutes. What would you prefer? Sentence16: The cambridge belfry is a hotel, not a guesthouse. May I help with something else? Sentence17: Does any of them have free wifi? Sentence18: You're welcome! Have a great day. Sentence19: I need the postcode, hotel type, and price range for The Cambridge Belfry. Sentence20: I need more information on the number of nights and people. Sentence21: Any place is fine, I go with whatever you recommend. Sentence22: Forget about booking it, just please tell me what type of hotel it is. Question: Who has spoken the sentence 11? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: It looks like there are hourly trains starting at 5:09. Did you have a particular day and time in mind? Sentence2: Thanks for the help. Sentence3: Will you train arriving at 07:54 work ok for you? Sentence4: Yes I need it booked for 2 people please. Sentence5: Unfortunately, there are no other Italian restaurants in the east. Would you like me to find you one in another area? Sentence6: Is the pizza hut in the moderate price range? Sentence7: I've successfully booked 2 tickets for you, the reference number is 9FE8N16G . Sentence8: I am looking for an Italian restaurant in the east. Sentence9: Pizza hut fen ditton matches your description. Sentence10: I guess it'll have to do. Can you book us a table for 2 on Wednesday at 14:00 please? Sentence11: Uh, no pizza hut's please. Something more classy please. Sentence12: Absolutely! To start, let me get more details. What are your desired departure and arrival cities? Sentence13: Thanks so much! Can you help me with train tickets too? Sentence14: Yes, it is. Should I book it for you? Sentence15: Yes, I'd like to book the train for Wednesday and I want to arrive in Cambridge by 08:30. Sentence16: Booking was successful. The table will be reserved for 15 minutes.Reference number is : H4BTTI6P . Sentence17: The train should go to cambridge and should depart from leicester. Sentence18: Have a great day! Question: Who has spoken the sentence 7? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: Zizzi Cambrdige is my recommendation. Would you like to book a table there? Sentence2: I want to find a cheap Hungarian restaurant. Sentence3: A few cheap restaurants in the centre of town include Asian oriental, Chinese, Indian, Italian, Mediterranean cuisine. Do any of these interest you? Sentence4: What kind of cheap restaurants are there in the center of town? Sentence5: Thanks for using our system! Sentence6: I can make that arrival time work. Let's book it. And what is the total price and travel time, please? Sentence7: Booking for your train is successful. The total will be 68.6 for 7 people and the travel time is 47 minutes. Sentence8: I would like to depart from kings lynn. Sentence9: Unfortunately that time is not available, would you like to try another time or restaurant? Sentence10: Ooh, Italian sounds good. Sentence11: Ok, great! Can you also help me find a train going to cambridge? Sentence12: I'd like to arrive no later than 9:00 in the morning. Sentence13: Sure thing there are 1,414 trains heading to cambridge, do you have a time or location you would like to depart from? Sentence14: We have you booked for a party of 7 at zizi cambridge for 12:30. The reference number is F25II3N0 . They hold the reservation for 15 minutes. Sentence15: TR8705 will arrive in cambridge at 8:58, would you like to book a ticket for this or is that cutting it too close to your time? Sentence16: Yes please I need a table for 7 people at 13:30 on thursday Sentence17: I'm sorry, but there are no restaurants that match your criteria. Would you like to broaden your search? Sentence18: There are 19 trains that day, so you have a arrival or departure preference? Sentence19: how about 12:30 then? Sentence20: Thank you for all your help, that is all I need today. Question: Who has spoken the sentence 17? (A) User (B) System

A:
Answer: (B) System
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