You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
--------
Question: Sentence1: Yes, after 8:30 would be best. Sentence2: I have booked you a train ride on TR6488 which will depart at 09:21 and will arrive at 10:10. The total fee will be 10:24GBP. Would you like the reference number? Sentence3: No thank you. Thanks for your help. Sentence4: Great, thank you. That's all I needed. Sentence5: What is the total travel time? Sentence6: The post code is cb21ab and the phone number is 01223323737. Where would you like to book a train to? Sentence7: Where are you departing from? Sentence8: I would like the post code and phone number for the restaurant please, and I would like to book a train. Sentence9: The total travel time will be 49 minutes. Sentence10: You're welcome. Is there anything else I can do for you today? Sentence11: I'm leaving from Cambridge. Sentence12: I think something cheap. If not, go up to moderate. Sentence13: Do you have a time in mind? Sentence14: Good day to you. Sentence15: I suggest pizza hut city centre, it has a cheap price range. Would you like me to book it or would you like more information? Sentence16: Yes, Please book the reservation. Sentence17: I need to go to Stevenage on Sunday. Sentence18: I'd be happy to book a table for you. Please let me know the day, time, and the number of people in your party. Sentence19: There are nine of them. What price range do you prefer? Sentence20: I am looking for an Italian restaurant located in the centre of Cambridge. Question: Who has spoken the sentence 15? (A) User (B) System

Answer: Answer: (B) System


Question: Sentence1: Of course, when would you like your reservation to be and for how many people? Sentence2: Do you have a area preference? Sentence3: No that will be all. Sentence4: Excellent, I have booked you a table for 6 at 17:00. Tables are reserved for 15 minutes. The reference number is RI11SSDU . Sentence5: Does it have free wifi? Sentence6: Acorn guest house matches your requirements, would you like to book there? Sentence7: Do you need anything else? Sentence8: What are my choices for a moderate hotel? I don't need free parking. Sentence9: The hotel does have internet. Sentence10: I have results for 18 moderately priced places, what area are you looking to stay in? Sentence11: Great can I get their address, phone number, and postcode? Sentence12: I would like to make a reservation at Hotel Du Vin and Bistro. Sentence13: I have 2 European and 2 Modern European. Do you have a preference? Sentence14: Thank you for contacting Cambridge TownInfo Centre, enjoy you hotel stay and your dinner! Sentence15: I would like the restaurant to be in the Centre and serve European food. Sentence16: The acorn guest house is located at 154 chesterton road, postcode cb41da and the phone number is 01223353888. Sentence17: Yes, in the centre. Sentence18: Six people on Wednesday, at 17:00 Sentence19: Thank you so much for all your help! Sentence20: I am also looking for a restaurant. The restaurant should be in the same price range as the hotel and should serve European food. Sentence21: No particular area, I need a hotel with a 4 star rating. Sentence22: There are 2 to choose from: Hotel Du Vin and Bistro, and Galleria, and there are 2 others that are similar, but serve modern european. Do any of these sound good? Question: Who has spoken the sentence 10? (A) User (B) System

Answer: Answer: (A) User


Question: Sentence1: Their phone number is 01223334860. Can I help you with anything else? Sentence2: I would also like to visit an attraction. I would like to find a college in the centre. Sentence3: The price doesn't matter to me. I'll be looking for places to visit in the centre, so if one is located there, that's fine. Sentence4: There are 19 hotels available in the 4 star range. Is there a specific area or price you would like? Sentence5: That is all, thank you. Sentence6: Might I recommend Downing College which has free admission and is located on Regent Street with postcode cb21dq. Sentence7: I am looking for a hotel in cambridge that includes free parking and wifi can you help? Sentence8: The cheap one is fine. Book it for 4 people for 4 nights starting Tuesday Sentence9: Okay, I have a cheap guesthouse in the center, and and expensive hotel as well. They both have 4 stars, which one sounds best? Sentence10: I have successfully booked a 4 night stay at the alexander bed and breakfast, your reference number is 8BHSGT90 . Sentence11: How about ones with four stars as well? Does that narrow it down any more? Sentence12: Would you like for me to search for something else. Sentence13: Could you get me a phone number for Downing College please? Sentence14: I am sorry but I need more information from you. Which area and pricerange do you prefer? Sentence15: Not really, just select one and book it for four people staying four nights froms Tuesday. Sentence16: There are 29 options. Would you like a recommendation, or do you wish to narrow the search? Question: Who has spoken the sentence 2? (A) User (B) System

Answer:
Answer: (A) User