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 am looking for a police station in Parkside Sentence2: Best wishes to you. Have a good day. Sentence3: No. That's all I wanted to know. Thanks. Sentence4: There is a police station in Parkside. The postal code is CB11JG and the phone number is 01223358966. Is there anything else I can help you with? Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: I see there is a train on Friday that leaves leicester at 14:09 to Cambridge, could you book me a ticket for this train? Sentence2: I have 9 restaurants in that area. May I ask what your budget for lunch is? Sentence3: I have a 12:09 that arrives at 13:54. Would that do for you? Sentence4: The duration of the trip is 105 minutes. Have a great day! Sentence5: Yes, the gandhi is in the cheap price range. Their address is 72 Regent Street City Centre. Would you like me to book a table for you? Sentence6: Hi there, I'm trying to find a train that leaves from Leicester but it must be after 11:15. Can you help me book a ticket? Sentence7: I just need the train ID please. Sentence8: There are three cheap resturants int hat area, kohinoor, the gandhi, and mahal of cambridge. Sentence9: I think that is all for now. Sentence10: Did you only need one ticket? Sentence11: The train ID is TR6247, would you like to book a seat? Sentence12: The train ID is TR8882. Can I help you with anything else? Sentence13: No thank you, their information is enough at this time. Do they have a phone number? Sentence14: The Ghandi sounds nice. Can I get their address? And they are a cheap restaurant, right? Sentence15: Please book me a ticket for that train. Sentence16: Yes, their phone number is 01223353942. Is there anything else I can help you with today? Sentence17: Yes, that would be fine. Could I get the train ID? Sentence18: I need a train from leicester on thursday and should leave after 11:15. Sentence19: No thank you. That's not necessary. Can you help me find an indian restaurant in the centre of town? Sentence20: Nothing expensive please. Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: We have 2,828 entries for a train. Could you narrow it down to what you need? Sentence2: I'm sorry but I don't have any hotels that match your criteria in that area, would you like to try another part of town? Sentence3: I would like to stay in the south please. Sentence4: Can you double check for a 4 star, south area hotel with free wifi and parking please? Sentence5: I have 2 guesthouses matching your requirements, one cheap and one moderate. I recommend the moderately-priced Aylesbray Lodge. Sentence6: I'm looking for a place to stay with free wifi. Find me a hotel like that with a star of 4. Sentence7: Okay. Would you like to stay on the west side of town, or the centre? Sentence8: Okay, thanks. I'm also looking for a train for Friday. Question: Who has spoken the sentence 4? (A) User (B) System
Example Output:
Answer: (A) User