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

Ex Input:
Sentence1: The Warkworth House is a guesthouse in the East, it's moderately priced and rated 4 stars. I would love to assist you in booking a room if you would like? Sentence2: There are 5 parks in town. Did you have a certain area you prefer? Sentence3: It's actually not a museum, but considered an architecture attraction. Were you interested in a specific type of attraction? Sentence4: Cambridge university botanic gardens is a beautiful park. Its located at bateman street, costs 4 pounds to get in. Phone 01223336265, cb21jf. Will you need transportation? A train, taxi or bus? Sentence5: have a good day Sentence6: No, Is that a museum or a church. Sentence7: Oh, I suggest my favorite! It's Holy Trinity Church, beautiful architecture, and it's located on Market Street. It's free. Would you like their phone number? Sentence8: I have you at the Warkworth house. Would you like to change the reservations? Sentence9: i am looking for somewhere to go in the centre of Cambridge Sentence10: I think we would like it to be in the centre of town please. Sentence11: Yes your reference number is 53LJQ4H6 . Sentence12: No. That's perfect! Thanks for your help. Good bye. Sentence13: Yes, please. Can you reserve a room for Monday for 5 people, 3 nights? Sentence14: no. also find me a hotel by the name warkworth house Sentence15: Actually, I will need to book lodgings as well. Sentence16: Thanks! Can you suggest to me something to visit that isn't a church or architecture? Maybe a museum or a park? Question: Who has spoken the sentence 15? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: Sure. What area would you like to stay in? Sentence2: yes postcode is cb39lh Sentence3: I'd like to stay on the westside, at a place with free parking and WiFi. Sentence4: Can you help me find a moderately priced place to stay? Sentence5: There is the Hobsons House. It is nice and is a 3 star guesthouse. Sentence6: Could you give me the postcode. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: Yes, I am going for luxorious today. I need to find an expensive restaurant in the centre. Sentence2: Sure. Train TR5476 leaves Cambridge at 18:40 and arrives at Stansted Airport at 19:08. Would you like me to book that for you? Sentence3: What is the travel time for that one? Sentence4: Sounds good. Can you reserve me a table for 8 people on Wednesday at 13:15 please? Sentence5: Your reservation at Clowns Cafe for this wednesday at 13:15 for 8 people was successful. Your Reference number is : XLDDAGQJ . Sentence6: Anything else you need today? Sentence7: I'd prefer Italian food please. Sentence8: I need a train to stansted airport on Thursday that arrives by 19:30. Sentence9: Thank you very much! Sentence10: d recommend clowns cafe Sentence11: There are a lot to chose from what type of food do you want to eat? Sentence12: No, I was hoping for a recommendation. Sentence13: We have 4 matches in the centre area of the town. Do you know the name of the place by any chance? Sentence14: nope you have been great! Sentence15: It's 28 minutes. It's very fast. Sentence16: Thank you. Enjoy your dining experience and don't hesitate to call again. Have a great day! Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User