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 information for the Parkside Police Station, is this close to your location? Sentence2: You're welcome. The police will help you immediately. Goodbye. Sentence3: Thank you for your help Sentence4: Please put me in touch with the local police, I was just robbed. Sentence5: The phone number is 01223358966 and the post code is CB11JG. Sentence6: I don't know, could you just give me the postcode and phone? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: You're welcome, enjoy your day. Sentence2: How about Downing College? It has free admission and is located on Regent Street/ Sentence3: I'd like to visit a college in the center of town. Could you help me find something interesting? Sentence4: That sounds great! Can I have their phone number and postcode, please? Sentence5: No, that was all I needed to know. Thank you, you've been very helpful. Sentence6: Downing College's phone is 01223334860 and their postcode is cb21dq. Can I help you with anything else today? Question: Who has spoken the sentence 4? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: I'm looking for a cheap restaurant that serves world food? Sentence2: I can get a table for you at da vinci pizzeria. This is the only other place to eat in that area. Reference number is W6MFU6XD . Sentence3: Yes. Can you look for something in the same area and price range please? Sentence4: There are two Indian restaurants, the nirala and royal spice. The royal spice is in the cheap range and the nirala is in the moderate price range. Sentence5: I need a booking for 2 people at 17:30 on tuesday. Sentence6: The only restaurants in the north serve Asian Oriental, Chinese, European, French, Indian or Italian food. Would you like to change to one of those? Sentence7: The restaurant should be in the north. Sentence8: Booking was unsuccessful. Would you like to find another restaurant? Sentence9: That is perfect. Thank you for all the help! Sentence10: Thank you for using our system! Sentence11: Unfortunately there are now restaurants that meet those specifications. Would you like me to look for a different kind of food? Sentence12: What day would you like this reservation to be available for? Sentence13: Tell me about the Indian restaurants in the north then please? Sentence14: Can you book me a table for two at the Royal Spice? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output:
Answer: (B) System