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 also looking for a place to stay at a 4 star hotel near the restaurant. Sentence2: I was able to book a room for 5 people, 5 nights. Your reference # is 5DD52JOS . Can I help you with anything else today? Sentence3: I prefer something cheap. Sentence4: Yes, for 5 nights on the same day. I also need the reference number. Thanks! Sentence5: Lets go with charlie chan, I would like to to book a table for 5 people at 11:00 on wednesday. Sentence6: Okay, have a great day! Sentence7: Need a place to dine, chinese near centre. Sentence8: The Alexander Bed and Breakfast is cheap, would you like to book it? Sentence9: There are three options, charlie chan, rice house and golden house. Can I book you for one of those? Sentence10: Are either option cheap? Sentence11: There are two located in the same area. alexander bed and breakfast and university arms hotel? Sentence12: I think that is all I need today. Thank you for all your help. Sentence13: I have 10 places. Would you like a certain price range? Sentence14: Your booking was successful, the reference number is B1FIKA09 . Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: They are all moderately priced, but Avalon has free internet and four stars. Would that suit you? Sentence2: Yes, free wifi. No free parking though. Sentence3: That sounds good. Do they have wifi? Sentence4: Your table has been booked. The reference number is 3FOO64PM . Sentence5: Thank you I am also looking for a restaurant in the same area as the hotel serving expensive chinese food. Sentence6: please contact us again in the future. goodbye. Sentence7: There is Hakka located at Milton Road Chesterton would you like me to reserve it for you? Sentence8: I have three guesthouses to choose from. Do you mind they are in the north? Sentence9: I'm looking for a guesthouse to stay in and I don't need a free parking. Sentence10: 01223315702 and cb12dp. Sentence11: Perfect thats all I needed! Sentence12: This one is in the north a and b guest house Sentence13: Are there any moderately priced 3 star guesthouses in the west available? If not in the west, what about the north? Sentence14: Yes please. I need it for 8 people on Wednesday at 19:15. Sentence15: That's fine. Could I get their postcode and phone number? Sentence16: No that is okay, can you book the cheapest one for me please? Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: There are a few different options for that. What price range would you prefer? Sentence2: Something moderately priced would be ideal, please. Sentence3: I'd recommend ashley hotel on 74 chesterton road. Would you like a room? Sentence4: I am looking for a place to stay. I want to stay in a hotel that includes free wifi. Sentence5: I can help with that! What area will you be staying in? Sentence6: Yes, that would be great. For 4 nights on Tuesday for 7 people please. Sentence7: Any area in Cambridge is fine, but I want the hotel to have a 2 star rating. Sentence8: I will book you for the Ashely Hotel,ok ? Question: Who has spoken the sentence 1? (A) User (B) System
Example Output:
Answer: (B) System