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

Sentence1: Id is TR0625, travel time is 79 minutes and you will arrive by 22:55. Anything else? Sentence2: Actually, could you help find a train as well? To Norwich? Sentence3: I found a train from cambridge to norwich at 05:36 on Friday, will that work? Sentence4: Sunday would be good. Sentence5: No, you've answered all of my questions. Thanks so much for your time. Bye. Sentence6: The Acorn Guesthouse is a 4 star hotel located in the north side of town. It includes free internet and parking. Would you like me to book it for you? Sentence7: I need to leave after 21:30, is there anything closer to that time? Sentence8: Thank you, and thanks again for using our free service. Sentence9: I am trying to find the Acorn Guest House. Sentence10: No, just leave after 21:30. Will you give me the travel time, arrival time and the Train ID? Sentence11: No, thanks. I will go ahead and book it myself. I think I have all the information I need. Thank you. Sentence12: Is there a time you need to arrive by? Sentence13: Yes there are 14 trains. Which day would you like to depart? Sentence14: Thank you for using our service, have a nice day. Question: Who has spoken the sentence 11? (A) User (B) System
Answer: (B) System

Sentence1: royal spice serves indian food in the cheap price range and is in the North part of town. Sentence2: royal spice's address is Victoria Avenue Chesterton Sentence3: What kind of food would like? Sentence4: Da vinci pizzeria serves Italian food in the cheap price range and is in the North part of town. Sentence5: Are there any other options? Sentence6: That sounds great. May I have their address please? Sentence7: I am looking for a cheap restaurant that is in the north part of town. Sentence8: enjoy! Sentence9: Thank you very much , bye bye Sentence10: Any Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

Sentence1: the reference number is 9g1eycif . Sentence2: The abbey pool and astroturf pitch is located at pool way, whitehill road, off newmarket road. Do you need anything else? Sentence3: I'm looking for an attraction in the category of swimming pool. Sentence4: That is all I need. Thank you for your help! Sentence5: Yes, west, east, south and north. Sentence6: Could you book rooms for 7 people for 4 nights starting from Saturday? Sentence7: I will need the reference number. Sentence8: Yes, I'm also looking for a guesthouse in a moderate price range. Sentence9: I've got four pools for you. What area are you in? Sentence10: The area doesn't matter, but it should have 4 stars please. Sentence11: What area would you like to stay in? Sentence12: I'm pretty open. Can you list the areas? I'll choose one of the four. Sentence13: The acorn guest house is awesome. I would suggest that place. Sentence14: Please tell me about the locations of some pools in the south. Sentence15: One in the east is fine. I need the address please? Sentence16: I am sorry but there are none in the south. I have one east, two north and one centre. Sentence17: No problem. Enjoy your stay. Sentence18: I have you booked for 4 days. What else can I do for you? Question: Who has spoken the sentence 3? (A) User (B) System

Answer: (B) System