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

Example Input: Sentence1: I have 5 optionsd available,all have WiFi Sentence2: Do you know if any of them offer free wifi? Sentence3: Sure! We have 18 4 star guesthouses, would you like a specific part of town or price range? Sentence4: I'm needing a 4 star guest house today. Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Actually, I'm all set. Thank you! Bye! Sentence2: OK, great. will it be the same two people as on the train and starting on Monday? or do you have different needs for lodging? Sentence3: What is the price for that trip? Sentence4: Could you clarify if you need the reservation for 1 or 2 people please? Sentence5: Certainly, where will you be departing from? Sentence6: It look like the TR0532 is what you are looking for departing Bishops Stortford at 7:29 and arriving in Cambridge at 8:07. Would you like to book? Sentence7: The postcode for Worth House is cb41da and yes, it has internet! Sentence8: I would prefer the hotel be in the north part of town. Sentence9: I don't need to book today, thanks. Can you get me the postcode of one of them? Oh, and please make sure the one you choose has internet! Sentence10: Okay you sure you will not require a booking? Sentence11: I need a cheap hotel with free parking. Sentence12: The fare is 10.10 GBP per ticket. Sentence13: Okay let me see if I can book that for you. Sentence14: I need reservations for 2. Sentence15: Hi I am looking for a train to arrive in Cambridge by 08:15. Sentence16: Nope, same people. Sentence17: I've booked your tickets for the 7:29 train from Bishops Stortford, reference ZHT6R80S . Can you give me more information about the type of hotel you'd like? Sentence18: 1 person 5 nights please Sentence19: There are 10 total hotels, do you have a preference for area? Sentence20: I'd be happy to book that for you, what day will you be arriving on, and for how many nights? Sentence21: I'll be leaving from Bishops Stortford on Monday. Sentence22: I will go ahead an book at the Worth House. Sentence23: City centre north b and b and Worth house are both guesthouses and located in the north. Would you like me to book one for you? Sentence24: I need to make a booking for 2 people and can you find me a place to stay in the north? Question: Who has spoken the sentence 17? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Certainly, it is a museum on a went side of town with free admission, they can be reached at 01223295264. Can I help with anything else? Sentence2: The postcode is cb30aq. Sentence3: The hotel I'm looking for is called the Avalon. Sentence4: The address is 23 high street, fen ditton. Sentence5: I need help getting some info on the lynne strover gallery Sentence6: Avalon is not on the west side of town. Sentence7: There is nothing on the West side,do you want another area ? Sentence8: There are 2 hotels in the west area, did you have a price range? Sentence9: i'm also looking for a hotel. Sentence10: What about the post code? Sentence11: Well what is on the west side then? Sentence12: Yes, the address would be great. Thanks so much. Question: Who has spoken the sentence 4? (A) User (B) System
Example Output:
Answer: (A) User