Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: No, I'm good. Thanks for all your help! Sentence2: Here are the numbers for 2 churches, all saints church(01223452587), holy trinity church(01223355397). There are three more if needed. A good restaurant is gourmet burger kitchen. Sentence3: The churches are free. Sentence4: Thank you for using our services! Sentence5: I'm sorry, I'm really distracted on this end. Can you tell me the postcode of the Gourmet Burger Kitchen? And what are their prices like? Sentence6: Oh, wait! If the Gourmet Burger Kitchen is in the same area as the churches, could I get the phone number for that, too? Sentence7: Thank you goodbye Sentence8: It is expensive. The postcode is cb21ab. Sentence9: The address is Regent Street City Centre. What day you would like the reservation to be? Sentence10: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence11: I'd like to take a look at some of the older churches, what are some of the entrance fees for those? Sentence12: Please give me their phone number. I also need a restaurant that serves North American food Sentence13: Yes may i please have the address to Gourmet Burger Kitchen and can you book reservations for 2 for 13:00 Sentence14: Will you still need a reservation, or are you all set? Sentence15: I think I can help you with that. There are several historic colleges and churches to see. Many offer free admission. Sentence16: Ok, that's great. Thank you. Sentence17: Certainly! The phone number is: 01223312598 Is there anything else we can assist with today? Sentence18: I'm looking for something to do in Cambridge. I'm interested in architecture, is there any interesting buildings around the city centre? Question: Who has spoken the sentence 12? (A) User (B) System
A:
Answer: (A) User