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

Example Input: Sentence1: Probably the emergency department, the phone number is 01223217118. Sentence2: Thank you for the information. Sentence3: Which department should I contact for a sprained ankle? Sentence4: Nope that is it. Thank you Sentence5: I want to find a hospital in town Sentence6: Thank you , could you provide me with the email address? Sentence7: Addenbrookes Hospital is located at Hills Rd, Cambridge. Is there a particular department you're looking for? Sentence8: You are very welcome. Is there anything else I can help you with today? Sentence9: You're welcome. Thank you for using our service. Sentence10: Unfortunately there isn't an email address listed here. Sentence11: The address is Hills Road, Cambridge. Sentence12: Can I have the address please. Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: the cambridge and county folk museum is located 2-3 castle street Sentence2: Yes, that would be great. There will be 7 of us. Sentence3: Do you have any 0 star places? Sentence4: Is there one in the moderate price range? Sentence5: I'd like to start on Friday please and stay for 3 nights. I will also need the reference number. Sentence6: Thanks, can you also give me the entrance fee, phone number, and postcode? Sentence7: Yes, Cityroomz is in the moderate price range. Would you like to make a reservation? Sentence8: Okay. Would you like to narrow it down by the area, price range, or type? Sentence9: I'd be happy to make a reservation for the 7 of you. I will need to know what day to start your reservation and for how many nights, please. Sentence10: I also need a place to stay. Sentence11: That will be all, and thanks so much for your help. Sentence12: I have 2 guesthouses and 1 hotel that are 0 stars, do you have a preference or want a particular area of town? Sentence13: I'm looking for the cambridge and county folk museum. Sentence14: The fee is 3.5 pounds, the number is 01223355159, and the code is cb30aq. Sentence15: Have a nice day. Sentence16: Your reservation for 7 people at Cityroomz this friday for 4 days 3 nights was successful. Your Reference number is : SOF4G9MY . Anything else I can do for you? Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Do you see a Chinese restaurant in the same area as the hotel? Sentence2: I've found the rosa's bed and breakfast which is a cheap guesthouse in the South. Would that work for you? Sentence3: Yes how about for 16:45? Sentence4: They're located at 53 Roseford Road in postcode cb22ha. And yes, they do offer free parking. Sentence5: Yes for 7 people for 17:45 on a Monday. Sentence6: I'm sorry, that booking was unsuccessful, too. Would you like to try another time? Sentence7: Can we make the reservation an hour later? Sentence8: No, you have been very helpful thank you. Sentence9: We have one restaurant that matches your needs, it's The Missing Rock in the east area. Would you like me to book for you? Sentence10: Your best choice would be The Lucky Star, which is on Cambridge Leisure Park. Would you like to make a reservation? Sentence11: I'm looking for a hotel in the south, and I'd like cheaper options please. Sentence12: There are going to be a lot of us, so something cheap would be best. Sentence13: Great. Do they also offer free wifi? Sentence14: I am also looking for international food that is in the cheaper price range. Sentence15: No thank you- please just give me the address and phone number. Sentence16: The address is Finders Corner Newmarket Road, and the phone number is 01223812660. Sentence17: They sure do. Would you like to make a reservation? Sentence18: Sure! I have three options for Chinese food in the south with both cheap and expensive price ranges. What price range did you want for this restaurant? Sentence19: No, that's ok. Could you just give me the address and postcode and please let me know if they have free parking? Sentence20: Let us know if we may help further. Thank you, good bye. Sentence21: Does it have a star of 4? Sentence22: I apologize but I was unable to book your party for that time. Would you like to try a different time slot or a different day? Sentence23: Yes it does. Sentence24: I have your table booked. The reference number is : GI0NB9LA . Is there anything else I can help you with? Question: Who has spoken the sentence 20? (A) User (B) System
Example Output:
Answer: (A) User