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: That is all, thank you, goodbye. Sentence2: Is there anything else we can help you with? Sentence3: Goodbye. Sentence4: Ok. Thanks. Sentence5: I am looking for a restaurant in the south part of town and serving portuguese food. What is the address and phone number? Sentence6: Nandos is a portuguese restaurant in the south part of town. Their address is Cambridge Leisure Park Clifton Way and their phone number is 01223 327908 Question: Who has spoken the sentence 2? (A) User (B) System

Output: Answer: (A) User

Input: Consider 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

Output: Answer: (B) System

Input: Consider Input: Sentence1: Yes, that will be good! I need eight tickets, please. Sentence2: The address is 732-734 newmarket road. Do you need any more information? Sentence3: What is their phone number? Sentence4: What is the address of the hotel? Sentence5: Can you also give me some information on the Leverton House hotel? Sentence6: Thanks! That's all I needed. Goodbye! Sentence7: I want to leave on wednesday and arrive by 10:15. Sentence8: You're welcome. Please let us know if you need any more assistance? Sentence9: There are 5 trains arriving by 10:15, would you like to book one leaving at 8:24 and arriving at 8:52? Sentence10: You now have 8 tickets on the TR7667. Your reference number is A1S8REZC and your total will be 80.8 GBP, payable at the station. Is there anything else I can do for you today? Sentence11: I found 133 train trips, do you have a date and time you would like to travel? Sentence12: Their phone number is 01223292094. Sentence13: I'm looking for a train departing from Stantsted Airport going to Cambridge. Sentence14: I certainly can. What would you like to know about the Leverton House? Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (A) User