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

Input: Consider Input: 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

Output: Answer: (B) System


Input: Consider Input: Sentence1: Okay, the TR8944 leaves at 15:39 and arrives by 17:07. Would you like me to book tickets for you? Sentence2: There are 10 trains leaving fro Liverpool Street on Thursday. Did you have a departure time in mind? Sentence3: Okay I have booked you and your reference number is WLUOQKEV . Sentence4: rosa's bed and breakfast is in the cheap price range Sentence5: I'm looking for a train departing from london liverpool street leaving on thursday. Sentence6: Do you need a taxi? Sentence7: Goodbye, and thanks again. Sentence8: Yes, I don't want to leave for Cambridge until 15:00 at the earliest. Sentence9: Sure thing. Thanks for letting us help you today! Sentence10: Thank you. I also need a hotel in the south. Sentence11: then thanks for inquiring with us. Sentence12: I don't need a taxi, thanks for asking Sentence13: No price range but I do want a 4 start. Sentence14: Yes, for 6 people. Sentence15: What price range are you interested in? Sentence16: That sounds great. I'll need a reservation for 6 people for 4 nights on Thursday. Sentence17: I've gone ahead and booked that for you. Your Reference number is : EUZ34KY9 . Is there anything else I can assist you with today? Sentence18: No, that takes care of everything I need. Thanks! Question: Who has spoken the sentence 7? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: I would like you to help me find a train departure. The train should leave on thursday and arrive at cambridge. Sentence2: From Bishops Stortford after 15:00 Sentence3: Train# TR7759 departing from Cambridge at 15:29 arrives in Bishops Stortford at 16:07. Can I help you with anything else? Sentence4: Ok thank you for your help. Sentence5: Ok! I suggest the Archway House. Would you like a room book? Sentence6: Sure, thanks, for 6 people, for 2 nights, starting Thursday, please! Sentence7: I have 5 trains. They depart 15:29, 17:29, 19:29, 21:29, 23:29. They are all 38 mins travel duration. Sentence8: No, I just need the train ID and arrival time Sentence9: Can I look up anything else? Sentence10: I'm sorry, there are no trains that day. Would you like to try another day? Sentence11: Thank you for using the Cambridge TownInfo centre. Have a great day! Sentence12: Alright, would you like me to make a booking for you? Sentence13: We have you set at Archway house. Reference number is P1FFCU2Z Sentence14: area and price are of no concern to me as long as the guesthouse has free parking and free wifi Sentence15: I think you should try again. Cambridge to Bishop Stafford on Thursday. Sentence16: I'm also looking for a place to stay. The hotel should include free parking and should include free wifi. Sentence17: There are about 8 choices. Did you want a certain area or price range? Sentence18: Where will you be leaving from? Sentence19: No that is it. Thank you. Sentence20: PLease give me the info for a train meeting the above listed criteria. Question: Who has spoken the sentence 8? (A) User (B) System


Output: Answer: (A) User