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: The phone number is 01223420060 and the post code is cb46az. Sentence2: Ok. I booked four tickets for you. Your reference number is FRSZ5A8R . Can I help you with something else? Sentence3: Yes. Book for 4 people. Sentence4: I would like the phone number and postcode for it please. Sentence5: What information are you looking for? Sentence6: Sounds great, before i let you go, I just want to make sure we have covered everything that you need. Sentence7: yes you did Sentence8: TR6806 will leave at 10:01 and arrive at 11:01. The trip will take 60 minutes and it will cost 17.90 pounds. Would you like to book? Sentence9: Thank you! That's all I needed, thanks so much. Sentence10: enjoy your stay in Cambridge! Sentence11: I'm going from cambridge to broxbourne any time after 09:15. Sentence12: I show 404 rail departures on Thursday, can I get something specific for you? Sentence13: I want a train leaving on thursday. Sentence14: Im also looking for a place by the name of milton county park. Question: Who has spoken the sentence 4? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: 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

Output: Answer: (B) System


Input: Consider Input: Sentence1: Can you check to see if that hotel can be booked for 1 night instead? Sentence2: Yes and looking for moderate price range. Sentence3: Could not book. Do you want to try another time slot? Sentence4: You're welcome. Have a great day! Sentence5: You definitely did, thanks so much! Sentence6: I'm looking for a place to dine in the centre that serves international food. Sentence7: Thank you. That's all I need. Sentence8: We have two options available to you, would you like their names and addresses? Sentence9: I need it for Tuesday for 5 nights for 1 person. Sentence10: The one night reservation was successful. Your reference number is AAWVSXC4 Sentence11: Can I book a table for one hour earlier instead? Sentence12: Booking was unsuccessful. Would you like to arrange a stay at a different time? Sentence13: Yes, the hotel should include free wifi. Sentence14: Can you book me a table for 1 person for Tuesday at 17:15 please? Sentence15: The gonville hotel has wifi, it's in the centre. Does that sound good? Sentence16: I got you a table at the varsity at 16:15. Reference number is Z8WGAYFN . Sentence17: I have 4 guest houses and 2 hotels. Do you have any other criteria? Sentence18: As long as it has a 3 star rating, please book the Gonville Hotel for me. Sentence19: The Varsity Restaurant is located at 35 Sain Andrews Street in the centre, and Bloomsbury Restaurant is located at the Crowne Plaza Hotel at 20 Downing Street. Sentence20: What day would you like to start your stay at Gonville? And how many days are you wanting to stay? Sentence21: You're welcome. I am glad I could assist you. Sentence22: I am looking for a 3 star hotel doesn't need to have free parking. Question: Who has spoken the sentence 7? (A) User (B) System


Output: Answer: (B) System