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: It looks like there are hourly trains starting at 5:09. Did you have a particular day and time in mind? Sentence2: Thanks for the help. Sentence3: Will you train arriving at 07:54 work ok for you? Sentence4: Yes I need it booked for 2 people please. Sentence5: Unfortunately, there are no other Italian restaurants in the east. Would you like me to find you one in another area? Sentence6: Is the pizza hut in the moderate price range? Sentence7: I've successfully booked 2 tickets for you, the reference number is 9FE8N16G . Sentence8: I am looking for an Italian restaurant in the east. Sentence9: Pizza hut fen ditton matches your description. Sentence10: I guess it'll have to do. Can you book us a table for 2 on Wednesday at 14:00 please? Sentence11: Uh, no pizza hut's please. Something more classy please. Sentence12: Absolutely! To start, let me get more details. What are your desired departure and arrival cities? Sentence13: Thanks so much! Can you help me with train tickets too? Sentence14: Yes, it is. Should I book it for you? Sentence15: Yes, I'd like to book the train for Wednesday and I want to arrive in Cambridge by 08:30. Sentence16: Booking was successful. The table will be reserved for 15 minutes.Reference number is : H4BTTI6P . Sentence17: The train should go to cambridge and should depart from leicester. Sentence18: Have a great day! Question: Who has spoken the sentence 7? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: Okay great, have a good day. Sentence2: Yes, quite a few! There's Broughton House Gallery, the Whipple Museum of the History of Science, and more. Would you like to know more about them, or the others? Sentence3: Yes, can you book it for 3 people and get me the reference number? Sentence4: Primavera is at 10 King s parade CB2 1st, the phone number is 01233357708. What day would you like to board the train? Sentence5: Could I get the address, phone numbers, and postcodes of them please? I'm also looking for a train from cambridge to broxbourne. Sentence6: Can you find me a multiple sports attraction in the centre? Sentence7: No, actually. I am all finished. Thanks for the help. Goodbye. Sentence8: Train TR9580 departs from Cambridge at 10:01 on Sunday and arrives at Broxbourne at 11:01. Would that work for you? Sentence9: Sorry there's no multiple sports in the centre. Would you like to try a different area? Sentence10: There are 11 museums in the area. They are all free. There are several art museums, an archaelogy museum, and a science museum. Sentence11: Yes I would love some information. Sentence12: Are there any museums in the centre? Sentence13: Sunday, and it should arrive by 12:00. Sentence14: Booking was successful, the total fee is 42.96 GBP payable at the station . Reference number is : IRD8RUWO . Do you need help with anything else? Question: Who has spoken the sentence 2? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: I am also looking for a train into cambridge the same day please Sentence2: Sorry. There are no moderately-priced 0 star places in the south of town. Do you want to try some other criteria? Sentence3: The booking was successful. Your reference number is 3UKMLIWO . Sentence4: It was a pleasure, thank you so much. Sentence5: Sunday as well, please. Sentence6: There are two places that match those requirements, one in the north and one in the city centre. Would you like to hear more about these? Sentence7: Okay. Can you purchase tickets for me. There will 6 of us. Sentence8: What day would you like the train? Sentence9: Yes, I need to leave Leicester after 11:00. Heading to Cambridge for the day. Sentence10: Hello, I'm looking for a place to stay that is moderately priced and a star rating of 0. Sentence11: Could you try for the center part of town? Sentence12: Are you sure there aren't any in the south of town? Sentence13: The cityroomz is a hotel in the centre part of town with a 0-rating in the moderate price range. Can I reserve a room for you there? Sentence14: Yes. Thank you for your help. Sentence15: I would recommend TR8285. It leaves Leicester at 11:09 and arrives in Cambridge at 12:54. Sentence16: Yes, I'd like to reserve it for 6 people for 4 nights starting Sunday, please. Sentence17: Your reservation was successful. Your reference number is SCKIYN5Q . You depart from Leicester at 11:09, arriving in Cambridge at 12:54. Would that be all for you today? Sentence18: Sure, where will you be departing from, and do you have a departure or arrival time? Question: Who has spoken the sentence 17? (A) User (B) System


Output: Answer: (B) System