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: Thanks again for helping to find me a place to eat. I have the reference number T44KC552. Sentence2: I am looking for a Cuban food place, in the east. Sentence3: No, thank you. You have been very helpful. Have a great day. Sentence4: Here is the address and the phone number: 7 Barnwell Road Fen Ditton, 01223244955. Sentence5: Yes, try that. Sentence6: Can you check again? The only thing I'm interested in is a moderately priced Cuban restaurant in the east. Sentence7: I apologize booking was unsuccessful. Would you like me to try Rajmahal Sentence8: Do you have a moderately priced Indian restaurant in the east? Sentence9: Yes I have 2. Curry Prince and Rajmahal. Sentence10: I will try the Curry Prince. Can you book a table for 4 people on Monday at 17:30? Sentence11: I have you at Rajmahal, Reference number is : T44KC552 . Anything else you need? Sentence12: I am sorry but there aren't any restaurants matching your criteria. Can I help you with something else? Sentence13: Enjoy your meal at the rajmahal. Have a great day. Sentence14: I apologize I am still not showing any restaurants that meet your criteria. Is there another type of cuisine you would prefer? Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: The price range should be expensive and it should be a hotel. Sentence2: There are 5 hotels that match your request. Was there a specific area you wanted to narrow it down to? We have hotels east, west, south, and in the centre, Sentence3: I will take something in the centre of town. How many stars does that one have? Sentence4: all saints church is found in the jesus lane and entrance fee is free. its postal code is cb58bs Sentence5: We have 44 attractions to choose from. Is there anything specific that you would like to see? Sentence6: Yes those are fine. I also need find an attraction in the centre of town to visit. Sentence7: There are two hotels that meet your request. Gonville Hotel is 3 stars and University Arms Hotel has 4 stars. Would one of these work for you? Sentence8: Anything will do, but I would like the address, entrance fee, and attraction type of whatever you pick. Sentence9: There are 29 places that match your request. Would you have a price range in mind or type of place? Sentence10: I need a place to stay in cambridge that has wifi, and free parking please. Question: Who has spoken the sentence 7? (A) User (B) System
Example Output:
Answer: (B) System