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

Sentence1: The post code is cb23dz. Sentence2: I need to arrive at 17:45. Sentence3: I will travel Tuesday. Sentence4: Thats perfect. What is the price and travel time on this train? Sentence5: I also need a train, to cambridge, I want to arrive by 17:45. Sentence6: There's a train that leaves at 13:17, want that one? Sentence7: What day do you need the train? Sentence8: Can I help you with anything else? Sentence9: Is there a time you need to leave or arrive by? Sentence10: It is 17.90 pounds and takes 60 minutes. Would you like me to book this for you? Sentence11: No thanks, just gathering information, that is all I need. Sentence12: That is all I needed today. Sentence13: Could you please provide me with the postcode. Thank you! Sentence14: As long as it arrives in Cambridge by 17:45 and departs from Broxbourne that will work. Sentence15: Glad I could help come backk if you need anything else Sentence16: I am looking for information about the museum of archaeology and anthropology. Sentence17: I have one arriving at 7:32 will this work for you? Sentence18: That museum is located over at University of Cambridge, downing street. It's free to visit. Question: Who has spoken the sentence 11? (A) User (B) System
Answer: (B) System

Sentence1: book a table for 6 people at 12:00 on wednesday Sentence2: Are you looking for one in a particular area? Sentence3: I'm looking for parks in Cambridge can you help me? Sentence4: No, area doesn't matter. What park would you recommend? Sentence5: Thank you that is all I need for now. Sentence6: Okay great! I hope you have a wonderful day! Sentence7: Tandoori Palace in the west is a wonderful Indian restaurant. Would you like their phone number or a reservation there, perhaps? Sentence8: I was able to book a table for 6 they will hold the table for you for 15 minutes. The reference number is M4ILDKD4 . Sentence9: The postcode is cb18dw. Sentence10: There are fifteen Italian restaurants in town. Do you want a specific part of town, or maybe a certain price range to narrow down the search? Sentence11: I need help finding a book on italian food Sentence12: No just the postcode please. Sentence13: Thanks. Could you help me find and expensive Indian restaurant perhaps? Sentence14: Cherry Hinton Water Play park in the east is an excellent place to keep cool on hot summer days. Would you like the address? Question: Who has spoken the sentence 4? (A) User (B) System
Answer: (A) User

Sentence1: Thank you for contacting the Cambridge TownInfo centre, have a great day! Sentence2: Excellent. What's the address and area there? Sentence3: Ok great. Your taxi booking has been completed. The care type will be a white tesla. Would you like the contact number? Sentence4: I have no preference. Can you please provide me with the address, postcode, and area on one? Sentence5: Yes, that sounds lovely. Thank you. Sentence6: I need to book a taxi to commute between the museum and the restaurant, leaving the museum by 14:30. Sentence7: The Fitzwilliam Museum, in the centre, has free admission. Trumpington St, cb21rb. Sentence8: I'm looking for a local restaurant to try in Cambridge. Sentence9: You're welcome. Is there anything else I can help you with? Sentence10: There are many! Is there a certain style of cuisine you are looking for, or a specific price range? Sentence11: Yes, on second thought I would like help finding a restaurant. What do you know about north american cuisine restaurants? Sentence12: Yes, please. That would be great. Sentence13: I think I can find a restaurant on my own, but can you tell me if there are any museums? Sentence14: There is one expensive North American restaurant in the centre of town. It is called the Gourmet Burger Kitchen. Sentence15: I have found 23 differnt museums in town. What part of town are you wanting to travel to? Sentence16: The number is 07555434856, is there anything else I can do for you? Sentence17: gourmet burger kitchen, in the centre is located at Regent Street City Centre Sentence18: No, that should be good, thank you. Question: Who has spoken the sentence 8? (A) User (B) System
Answer: (A) User