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

Sentence1: Was there anything you were specifically interested in? For example there are museums and nightclubs. Sentence2: Sorry, actually I need an expensive restaurant as well. Sentence3: thanks that is all i needed for today Sentence4: I am looking for something to do later in the centre of town. Sentence5: Thank you, that is all. Sentence6: Do you have a specific one in mind? Sentence7: Emmanuel Colleges number is 01223334200, and it is located on Saint Andrew's Street. Do you have any other questions? Sentence8: Okay what type of food would you like to eat and in what area please? Sentence9: There are five expensive european restaurants in Cambridge. I suggest eraina, which is also in the centre. Sentence10: I want to try european food wherever it may be. Sentence11: You're welcome! Have a great time! Sentence12: I would like to go to a college in the centre of town. Sentence13: Great. Thanks for letting us assist you today! Sentence14: No, any one will be find. Will you pick one for me and send me the address information and phone number? Question: Who has spoken the sentence 8? (A) User (B) System
Answer: (A) User

Sentence1: Booking was successful, the total fee is 450.6 GBP payable at the station . Reference number is : G368B2VI . Can I help with anything else today? Sentence2: I would like to stay in the centre of town please. Sentence3: TR0254 Leaves at 05:40, would you like me to book that for you? Sentence4: I will be departing from Birmingham New Street on Tuesday. Sentence5: The price is 75.10 pounds and it is a 163 minutes ride. Can I help you with anything else? Sentence6: Please book 6 tickets and send me the reference number. Sentence7: No thank you. Please tell me about the ticket pricing and time of travel Sentence8: Okay, the postcode is cb11ly. What else can I help with? Sentence9: No, not yet. I just need the postcode. Sentence10: Thanks for using Cambridge TownInfo centre. Have a great day! Sentence11: I'm looking for a train that goes to Cambridge and arrives by 08:45. Sentence12: The Gonville Hotel will meet all of your needs. Would you like me to book it? Sentence13: I found two expensive hotels, one in the centre and one in the south of town. Do you have a preference? Sentence14: Again, 3 star with free wifi. I don't care about the price. It has to be in the centre, though. Sentence15: That is all, thank you for your help today. Sentence16: Yes please. I need a 3 star hotel that offers free wifi Sentence17: I found 231 trains that fit your request. Where will you be departing from? Sentence18: What price range and what star rating are you looking for ? Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

Sentence1: I would like to arrive at 16:15 please. Sentence2: On what day and time do you need to go there? Sentence3: The earliest I can have you there is 06:32. The latest is 10:32, with several options in between. Any preference? Sentence4: I would like to book for 7 people please. Sentence5: Yes I can, I need the day and time you'd like to go please. Sentence6: There are no expensive restaurants in the centre of town serving canapes Sentence7: I will be traveling on Thursday. Sentence8: Sorry it looks like TR2145 is no longer available, I will substitute with TR5687 which arrives same time. Booking complete 125.29 GBP payable at the station, Reference number 8XYHVB3U .Anything else? Sentence9: There are 33 expensive restaurants to choose from in the centre. To narrow down results, what type of food are you wanting to eat? Sentence10: I'm trying to figure out my eating options. Are there any expensive restaurants in the centre? Sentence11: Can you book a table for 7 people? Sentence12: I would be happy to book a train for you. Which day will you be travelling? Sentence13: thank you that is all good bye Sentence14: How about Thursday at 19:15? Sentence15: Aww, that's too bad. Do you have any that serve korean food? Sentence16: I now need a train Sentence17: No thank you that is all I need Sentence18: The train should depart from broxbourne and should go to cambridge. Sentence19: Yes, I would like to arrive by 10:32 is 16:15 is not available. Sentence20: How about a place that serves canapes? Sentence21: Train TR2145 will arrive at Cambridge by 10:32. How many tickets should I book for you? Sentence22: Yes, little seoul is a great place for korean food. Sentence23: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 718ZBFFA . Can I help you with anything else? Sentence24: I need to get a little information from you to book a train. Where are you traveling to and from and for what day and time do you need to travel? Question: Who has spoken the sentence 2? (A) User (B) System

Answer: (A) User