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: I see there is a train on Friday that leaves leicester at 14:09 to Cambridge, could you book me a ticket for this train? Sentence2: I have 9 restaurants in that area. May I ask what your budget for lunch is? Sentence3: I have a 12:09 that arrives at 13:54. Would that do for you? Sentence4: The duration of the trip is 105 minutes. Have a great day! Sentence5: Yes, the gandhi is in the cheap price range. Their address is 72 Regent Street City Centre. Would you like me to book a table for you? Sentence6: Hi there, I'm trying to find a train that leaves from Leicester but it must be after 11:15. Can you help me book a ticket? Sentence7: I just need the train ID please. Sentence8: There are three cheap resturants int hat area, kohinoor, the gandhi, and mahal of cambridge. Sentence9: I think that is all for now. Sentence10: Did you only need one ticket? Sentence11: The train ID is TR6247, would you like to book a seat? Sentence12: The train ID is TR8882. Can I help you with anything else? Sentence13: No thank you, their information is enough at this time. Do they have a phone number? Sentence14: The Ghandi sounds nice. Can I get their address? And they are a cheap restaurant, right? Sentence15: Please book me a ticket for that train. Sentence16: Yes, their phone number is 01223353942. Is there anything else I can help you with today? Sentence17: Yes, that would be fine. Could I get the train ID? Sentence18: I need a train from leicester on thursday and should leave after 11:15. Sentence19: No thank you. That's not necessary. Can you help me find an indian restaurant in the centre of town? Sentence20: Nothing expensive please. Question: Who has spoken the sentence 2? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: How about the Ashley Hotel? It is on the north side of town, has 2 stars, free wifi and parking, and is moderately priced. Sentence2: Is that a 2 star hotel? Sentence3: Are there any available for less than $200 a night? Sentence4: Unfortunately, the rooms are unavailable for that day and time. Can I try a shorter stay for you or possibly a different day? Sentence5: Of course! The reference number is QZYSOMAW and the address is 74 chesterton road. May I help with anything else? Sentence6: No, it has 4 stars Sentence7: Can you make a reservation for 6 people for 3 nights starting on Wednesday. Sentence8: Yes, I was able to successfully book you for two nights. Is there anything else you need? Sentence9: The only 2 star hotels are in the north or the east. Do you mind staying in one of those areas? Sentence10: Nope, that's all I need. Thanks for your help! Sentence11: Can I have the reference number and address please? Sentence12: How about for 2 nights? Sentence13: We're glad to be of service, and please do not hesitate to contact us if you need more help while you're in Cambridge! Sentence14: Yes that would be fine with me Sentence15: There are several. Alexander Bed and Breakfast is cheap and is in the Centre. Would you like me to book that? Sentence16: Let's try a hotel type with free parking in the centre of town with a star of 2. Sentence17: Are there any rooms available in hotels with free parking? Sentence18: how about for 2 nights? Sentence19: Yes. Do you have a preference for the hotel's area or price range? Sentence20: I'm sorry. I have no 2 star hotels in the center of town. However, I have some in other parts of town. Would you care to modify your search criteria? Question: Who has spoken the sentence 10? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: sure, i have 11 options for you Sentence2: Booking was successful. Reference number is : 8FI2LR0P . Sentence3: Alright, have a lovely day. Goodbye. Sentence4: north 2 star and should include free wifi Sentence5: To the restaurant, I would like to arrive before the reservation time of 18:45. Sentence6: What time would you like the reservation for? Sentence7: Can I recommend the Lovell Lodge and make you a reservation? Sentence8: Will you be going from the Lodge to the restaurant? And what time do you want to leave or arrive? Sentence9: I also need a cab to get me to and from both places. I need the contact # and car type Sentence10: I would like it at 18:45. Sentence11: You have your choice of Hakka or The Hotpot, in luxury options, or the moderately priced Golden Wok. Sentence12: I was able to book the table for you per your request. Your reference number is : 1WEOP8WM . Is there anything else you need help with? Sentence13: OK, look for a grey Lexus. The contact number is 07361322317. Can I help with anything else today? Sentence14: That'll be everything thanks! Sentence15: Yes please. I need the reservation to be for 5 people and 4 nights starting on Friday. Sentence16: So I'm planning a trip and I need some information about where to stay in the North. I prefer hotels with free parking Sentence17: Thank you. I would also like to find a Chinese restaurant in the same area. Can you let me know what is available? Sentence18: The Hakka sounds good. Can you book it for 5 people on friday? Question: Who has spoken the sentence 17? (A) User (B) System


Output: Answer: (B) System