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

Example Input: Sentence1: Thank you. Could you please get me the phone number? Sentence2: Yes, I was wondering what the location is of Addenbrookes Hospital. Sentence3: no, that's all thanks Sentence4: That hospital is located on Hills Rd, Cambridge. Sentence5: Happy to help. Feel free to call back if any additional questions come up. Have a good day. Sentence6: The main hospital phone number is 01223245151. Were you looking for a specific department? Question: Who has spoken the sentence 4? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Thanks for using our services. Sentence2: I would prefer moderate price range. Sentence3: Got everything. Thanks. Goodbye. Sentence4: The restaurant is called meghna. The postcode is cb43lf, the address is 205 Victoria Road Chesterton. Anything else? Sentence5: Are there any Indian restaurants there? Sentence6: no, I just need to know the postcode. Sentence7: WHich price range do you want? I have expensive and moderate. Sentence8: Yes, there are 22. What area would you like to dine in? Sentence9: I want to dine in the west. Sentence10: I have found one, Can I make a booking for you? Question: Who has spoken the sentence 5? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Great, will you need a taxi perhaps? I can also give you information on attractions in the area. Sentence2: you are welcome. enjoy your stay. Sentence3: Perfect! That is all I needed. Sentence4: No, that was all I need, thanks. Goodbye. Sentence5: Done. Look for a white volkswagon and the contact number is 07673977358. Will there be anything else today? Sentence6: All righty, your reservation is set for Sunday, 18:15, for 8 people. Your table will be held for 15 minutes. Your reference number is NUVBZXWY . Sentence7: Yes, please. I will have a party of 8 ready to dine on Sunday at 18:15. Sentence8: Oh yes of course. I need one to arrive at the restaurant by 18:15. Please provide the car type and contact number. Sentence9: I recommend Royal Standard, a gastropub in the east. It's located at 290 Mill Road City Centre. Can I make a reservation for you? Sentence10: I'd prefer an address at this point. Thanks! Sentence11: Home From Home is a 4 star guesthouse with internet and parking in the moderate price range. Would you like their phone number? Sentence12: Okay. Their address is 78-80 Milton Road. Sentence13: Thanks! I'm also looking for an expensive restaurant in the east. Sentence14: I need to know more about a hotel called home from home. Question: Who has spoken the sentence 1? (A) User (B) System
Example Output:
Answer: (B) System