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

Example Input: Sentence1: Thanh binh is a nice restaurant that serves Vietnamese food and is in the cheap price range. Sentence2: That sounds great! May I have their phone number please? Sentence3: Thank you for using the Cambridge restaurant system, please call again. Sentence4: Okay, thank you for your help! Sentence5: How about vietnamese food, please? Sentence6: I am looking for a restaurant that serves Malaysian food and is in the cheap price range. Sentence7: thanh binh's phone number is 01223 362456 Sentence8: No matches found for cheap Malaysian food. Would you like something else? Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I would actually like to book it for 8 people, not 3. Sentence2: Could you reserve the one in the centre of town for 3 nights starting Monday? There will be 3 of us. Sentence3: You're welcome. Glad to help! bye bye! Sentence4: Sure no problem. So the hotel is huntingdon marriott hotel and your reference number for the booking is 34BAQ2WK . Is there anything else I can help? Sentence5: I am looking for a hotel in the expensive price range. Sentence6: Unfortunately, I wasn't able to book you for the day and time you wanted. Would another day or time be alright? Sentence7: No, it doesn't matter. I would like a 4 star hotel with free parking though. Sentence8: That's great. I'm all set , thank you! Sentence9: There are 5 expensive hotels available. Did you have a preference as to area of the hotel? Sentence10: There are two, one in the west and one the centre of town. Sentence11: I couldn't book that one either. Would you like to change your criteria? Sentence12: Okay, could you try the other one, please? Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Please book it for 4 people at 18:30 on Saturday evening. Sentence2: The cheaper the better please Sentence3: That sounds wonderful! May I please have the address, phone number, and post code? Sentence4: Okay, booking was successful. The table will be reserved for 15 minutes. Your reference number is AA76LKSA . Sentence5: Yes, as I said zizzi cambridge is a very good restaurant. How many people would like me to book a table for and what time? Sentence6: Sure thing! The address is: pool way, whitehill road, off newmarket road. The phone number and postcode are 01223902088 and cb58nt. Sentence7: I have some what price range would you like? Sentence8: Abbey pool is available on the east. Sentence9: Hi there, I need a swimming pool. The kids want to swim! Sentence10: You're welcome. Have a wonderful day! Sentence11: they are 3 but i recommend zizzi cambridge. can i get you the address? Sentence12: Thanks! That's all I needed today. Goodbye! Sentence13: Are there any italian restaurants located in the centre? Sentence14: Can you suggest one? I need reservations for saturday. Question: Who has spoken the sentence 12? (A) User (B) System
Example Output:
Answer: (A) User