Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: Okay Churchill College is free and their address is Storey's Way, their postcode is cb30ds and their phone number is 01223336233. Sentence2: When and where would you like to be picked up? Sentence3: What type of food would you like? Sentence4: I would like to know if there is an Italian restaurant nearby me. Sentence5: I am also looking for a restaurant. The restaurant should be in the moderate price range and should be in the same area as the attraction. Sentence6: how about you suggest one and book a table for 4 at 15:15 on wednesday, and I'll need the reference number too please Sentence7: Thank you for using our service today! Sentence8: I guess we don't need a restaurant after all. My husband isn't hungry. He wants to take a look at a college instead. Sentence9: Thats everything I needed thanks for the help! Sentence10: I'll also be needing a taxi to get me from the college to the restaurant. Sentence11: We have 15 italian restaurants. Let me find one close to you, what area are you in? Sentence12: I would like to find one in the west. Are there any in that area? Sentence13: I have a red audi and the contact number is 07674679354. Is there anything else I can assist you with today? Sentence14: The are five colleges in the west. Would you like to visit a free one or one with an entrance fee? Sentence15: Ok, I've booked you a table for 4 at Prezzo. Reference number is YXVRL9YK, and the table will be reserved for 15 minutes. Do you need anything else? Sentence16: I don't care, just need the postcode, phone number, and address. Sentence17: There are many colleges to choose from, which area of town are you interested in? Sentence18: From Churchill, and i want to get there by the time you booked my table. Question: Who has spoken the sentence 12? (A) User (B) System
A:
Answer: (A) User