You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
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Question: Sentence1: I have 5 choices for you. If I might suggest the Holy Trinity Church. It has the most unique architecture in our area. They also offer free admission. Sentence2: I will be visiting the centre. Sentence3: Like I mentioned, Holy Trinity Church is totally free. Is there anything else you'll be needing today? Sentence4: Sounds great. Do you happen to know the entrance fee for it? Sentence5: OK I HAVE 1 TRAINS THAT LEAVE AROUND THAT TIMES ONE AT 21:39 WOULD THAT WORK FOR YOU ? Sentence6: I need a train that lease from London Liverpool Street on Tuesday. Sentence7: Yes as long as it leaves AFTER 20:45 that will be fine. How much is it and how long is the travel time? Sentence8: There are 10 days departing London Liverpool Street on Tuesday. Is there a certain time of day you need to travel? Sentence9: No, I don't think so! Thank you for your help! Sentence10: How about architecture type instead? Sentence11: Thank you for using Cambridge TownInfo centre. Please remember us for all of your future travel needs. Sentence12: Which area are you interested in visiting in town? Sentence13: I would like to leave after 20:45. Sentence14: the train ride is 88 minutes and the cost is 16.60 pounds. it leaves at 21:39 and your reference number is Q6UN1GVR . is there anything else i may help you with? Sentence15: There is no entertainment in the centre. Would you be interested in a different type of attraction? Sentence16: I am looking for places to go in town. What type of entertainment is there in the centre? Question: Who has spoken the sentence 4? (A) User (B) System

Answer: Answer: (A) User


Question: Sentence1: That is all I need for today. thank you. Goodbye. Sentence2: I have 7 available. The first leaves at 17:32, and arrives at 18:32. Would you like me to book that for you? Sentence3: I'll be departing from Broxbourne and I'd like to go to Cambridge. Sentence4: I'm not looking to book at the moment, can I just get the train ID? Thanks! Sentence5: Okay glad I could help. Enjoy your trip. Sentence6: I'd like to find a train that leaves after 17:00 on Saturday. Sentence7: Of course! TR0811 leaves at 17:32, arrives at 18:32, with a duration of 60 minutes. The price is 14.32 pounds. May I assist you with anything else? Sentence8: Absolutely, I need departure and destination information and a time you need to arrive by. Question: Who has spoken the sentence 7? (A) User (B) System

Answer: Answer: (B) System


Question: Sentence1: I'll be flying out of the country from stansted airport on Tuesday. I need to get there at least by 13:30 Sentence2: Thank you so much, that's all. Goodbye. Sentence3: I am actually looking for a train to Stansted Airport. Sentence4: Your reference number is 9IQ2K2DW . Sentence5: Friday, 4 nights. Reference number please. Sentence6: Thank you for using the Cambridge TownInfo centre, and enjoy your time in Cambridge! Sentence7: TR7293 will arrive there at 12:08. Sentence8: i am looking for information in Cambridge. Sentence9: On what day would you like to arrive? Sentence10: There's the allenbell, that's located in the east side of town at 517a coldham lane. Sentence11: Great. I also need a place to stay that is a cheap guesthouse. Sentence12: Can you please tell me where you will be departing from and what time and day? Sentence13: Please reserve a room for 1. Sentence14: What area are you wanting to stay? Question: Who has spoken the sentence 7? (A) User (B) System

Answer:
Answer: (B) System