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

Example Input: Sentence1: Thanks, I'm also looking for some places to go in the centre. Sentence2: There are 44 different attractions in the centre. Can you narrow down your choices? Sentence3: Ok. And where are you leaving from? Sentence4: The phone number for All Saints Church is 01223452587 and they are located on Jesus Lane. They do not charge an entrance fee. Can I do anything else for you? Sentence5: I think whatever you think is the best place, just choose that. I am not picky. Sentence6: No, that will be it. Thank you so much for your help! Sentence7: I would want to find a train going to Cambridge. Sentence8: it should arrive by 11:15. get me the price Sentence9: Thank you for using our service! Sentence10: Okay, there are 10 trains available. Do you have a departure or arrival time in mind? Sentence11: The train should leave on wednesday and should depart from ely Sentence12: that sounds lovely, what is their phone number, address and any entrance fee's? Sentence13: TR2006 is leaving at 11:35 and costs 4.40 pounds. Sentence14: Perhaps you would enjoy seeing All Saints Church on Jesus Lane? Question: Who has spoken the sentence 8? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Yes as long as its in the same area and price range. I need a reference number too then please Sentence2: I'm looking for a cheap restaurant in the west area. Sentence3: I was unable to book that, would you like me to try something else? Sentence4: Okay that is all I need for now. Sentence5: I was able to get you into Thanh Binh. Your reference number is CLIBOL1Q . Sentence6: Let's go with La Margherita. Could you book a table for 2 people at 13:30 on Saturday? Sentence7: Thank you and goodbye. Sentence8: You have your choice of La Margherita, which serves Italian food, or Thanh Binh, which offers vietnamese cuisine. Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: rose's bed and breakfast Sentence2: Are either of them located on the south side of the city? Sentence3: I'll definitely need something on the cheap side. Sentence4: Which hotel would you prefer me to book? Sentence5: Sounds great! have a nice day! Sentence6: I need to find a 4 star hotel with free wifi Sentence7: There are 21 hotels that meet your needs. Would you like to narrow it down by area or price range? Sentence8: Okay, please book 4 nights for 4 starting tuesday Sentence9: Booking was successful.Reference number is : MCCKYP80 . Sentence10: I have at least two properties matching your requirements and both are considered 4 star hotels. Would you like me to book one of them? Sentence11: Yes, two of them are. Aylesbray lodge guest house and rose's bed and breakfast Sentence12: Thank you! I don't require any further help. Question: Who has spoken the sentence 10? (A) User (B) System
Example Output:
Answer: (A) User