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: yes, it is perfect Sentence2: Alright, there about 30 or so hotels that would work. Did you prefer a certain area or price range? Sentence3: It's booked. Reference number is 6JC8SK3S . Your taxi will arrive at 11 it's a red skoda with contact number 07950328037 Sentence4: The guesthouse has 4 stars. The address is 154 chesteron road. The phone number is 01223353888. Would you like for me to book it? Sentence5: I am looking for a place with free parking, Internet is not required. Sentence6: There really isn't any particular star rating I'm interested in. Sentence7: Thank you. Will it take more than 15 minutes to get from the hotel to the restaurant? Sentence8: How does the copper kettle sound? It is moderately priced in town centre and serves british food. Can I reserve a table for you? Sentence9: I'll book the hotel myself, but I would like a restaurant reservation. Someplace moderately priced in the center of town. Sentence10: May I suggest the Acorn Guest House? It's moderately-priced in the north. Sentence11: There are 21 moderately priced restaurants near the centre. Do you have a type of cuisine in mind? Sentence12: There will be 8 of us and I am also looking for a moderate priced restaurant in the center for 11:15 on Saturday. Please send me the reference number. Sentence13: Not really, but a moderate priced restaurant in the centre would be ideal. Sentence14: alright, that narrowed the results down to 21 guesthouses. is there a star rating you are particularly interested in? Sentence15: No. I believe that will be everything. Thank you. Sentence16: Thank you and please contact us again if you have any questions. Sentence17: Please tell me its star rating, phone number and address. Sentence18: What day will you be arriving? I also need to know how many people there will be and how long you will be staying. Sentence19: That's fine. Could you book a table for 8 people at 11:15. I need a reference number. I also need a taxi between both places arriving at the booked time. Sentence20: I don't really have an area or price range in mind at the moment, but I am looking for a place that's a guesthouse. Sentence21: Let's get your hotel booked first. I will need to know how many days you'd like to stay and what day you want to begin your stay please. Sentence22: No, your departure is at 11:00 and you will arive by 11:15. Is there anything else I can assist with you today? Question: Who has spoken the sentence 13? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: I'm looking for an expensive restaurant to dine at, somewhere in the North End of the Cambridge area. Sentence2: I have many different times available. The first one leaves at 12:26 followed by 13:36, 14:36, 15:36, and so forth until 23:36. Which time would you like best? Sentence3: I'm glad I was able to help! Thank you for using the Help Desk. Have a great day! Sentence4: I have many trains leaving from Cambridge to London kings cross on Friday. What time would you like to book the train for? Sentence5: There are 5 expensive restaurants on the north side of town. What type of food would you like? Sentence6: Thanks! I also need to book a train leaving Cambridge on Wednesday. Sentence7: Any type of food is fine. Can you book a table someplace that sounds good? I need a table for 4 on tuesday at 19:30. Sentence8: Uuh... actually, I'm headed to norwich from cambridge on Wednesday. Sentence9: I apologize see that the TR5574 leaves Cambridge for Norwich Wednesday at 12:36 and arrives at 13:55. Will that work for you? Sentence10: I have booked you a table for 4 on Tuesday at 19:30 at Saigon City, on the north end of Cambridge at 169 High Street Chesterton and your reference number is JARZR20Q if you need to contact them between now and then. Sentence11: 12:26 should be okay can I please get the train ID and travel time? Sentence12: Sorry about the confusion on that, what time would you like to depart? Sentence13: Thank you for that information, that is all I need at this time. Sentence14: I would like to leave after 12:00 please, what do you have available? Question: Who has spoken the sentence 13? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: Cotto is fine. I want to book a table for 1 person at 12:00 on Sunday. Sentence2: Cotto is completely booked for Saturday at noon. Could I direct you to a different restaurant? Sentence3: no, that will be all. thank you very much. Sentence4: Have a great day! Sentence5: Yes, please book me a different restaurant in the same area and price range. Sentence6: Restaurant one seven is also British cuisine, moderate priced, in the center of town and they are able to accommodate your reservation. Sentence7: I have booked your reservation for restaurant one seven on Saturday at 12:00. Your reference number is DYSZRX2B . Do you need any other assistance? Sentence8: Thank you that sounds like a great place. Sentence9: Are there any moderately priced places to eat with British styled food? Sentence10: Yes, I have 5 places. What about cotto? Question: Who has spoken the sentence 7? (A) User (B) System


Output: Answer: (B) System