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'm looking for an expensive restaurant in the center of town. Sentence2: Certainly. When would you like your taxi to depart? Sentence3: Is there any Turkish cuisine? If so I need the postcode and the address. Sentence4: No, that will be all, thank you! Sentence5: I need to arrive at Cambridge Contemporary Art by 19:15 please. Sentence6: Okay, have a nice day. Sentence7: I don't really care, what do you recommend? I will need the postcode and entrance fee please. Sentence8: I am also looking for museums in the area. Sentence9: How about Cambridge Contemporary Art? The entrance is free and the postcode is cb21su. Enjoy! Sentence10: There are many museums listed in the centre area, what kind of museum are you interested in? Sentence11: No problem. Your taxi has been reserved. Your driver's contact number is 07035811281 and will be driving a grey toyota. Is there anything else you need today? Sentence12: Thank you. I would also like a taxi to commute between the two places. Sentence13: There are many expensive restaurants in the centre of town, is there a specific type of food you would like? Sentence14: The Meze Bar restaurant matches your tastes. It is located at 196 Mill Road City Centre. The postcode is cb13nf. Question: Who has spoken the sentence 10? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: There are lots of local attractions, are you interested in architecture? Sentence2: No thank you. That will be everything I need today. You have a nice day. Sentence3: You're welcome! Have a nice day. Goodbye. Sentence4: I have confirmed a taxi picking you up at backstreet bistro at 24:45. The contact number is 07972785913. A blue volkswagen will pick you up. Can I help with anything else? Sentence5: Yes sure as long as the attraction is in the city center. Could you also provide me with the phone number and postcode of the attraction? Sentence6: Sure. I also need somewhere to eat. I'm thinking something on the expensive side and close to the college. Sentence7: Backstreet bistro is located in town centre. The address is 2 Sturton Street City Centre, phone 01223306306. Do you need any further assistance? Sentence8: Can I get one in the centre of town and looking for gastropub food. Sentence9: Of course. How about Saint Catharine's College, in postcode cb21rl? Phone is 01223338300. Sentence10: Backstreet Bistro is an expensive restaurant in the centre of town that serves gastropub food. Would you like more information or to make a reservation? Sentence11: Alright, there are 33 different restaurants around the college that are expensive. Is there a type of food you are looking for? Sentence12: Hi, I'm planning a trip to Cambridge and would like a few ideas on places to go for fun. Sentence13: Information, please! I'm not looking to make a booking at the moment. Sentence14: Yes, can you book a taxi between the two? I would like to leave the restaurant by 24:45. Question: Who has spoken the sentence 9? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I'm also looking for a cheap place to eat in the centre area, what do you recommend? Sentence2: Sorry for the confusion, I booked the restaurant for you and the reference number is 6UDMBSI2 . Anything else today? Sentence3: I would prefer portuguese food please. Sentence4: You are welcome enjoy ! Sentence5: Oh great. your booking was successful and your reference number is EBL4A5DL . Sentence6: It's a guesthouse in the north. It's cheap, and has free wifi and parking. Would you like a room? Sentence7: I need a taxi. I want to be taken from the hotel to nandos city centre, arriving by 17:00. Please give me the car and contact information Sentence8: I cannot book it for you. Would you like any more information? Sentence9: Nandos City Centre is located at 33-34 Saint Andrews Street. Would you like me to make reservations for you? Sentence10: Yes please. We will be arriving on Sunday for 3 nights. There are 7 of us. Sentence11: Yeah I want a table for 7 people on sunday at 18:00 Sentence12: Is the 17:00 time slot available for 7? Sentence13: There are many is there a type of food you'd prefer? Sentence14: Can you tell me about the city centre north b and b hotel? Sentence15: I can book it for you at 17:00 but I need to know what day, I can do Monday for you. Sentence16: Thanks for all of your help you've been great! Sentence17: Your all set! A blue volkswagon will be picking you up the contact number is 07525527431, is there anything else I can assist you with today? Sentence18: Is there another restaurant in that area with portuguese food? Question: Who has spoken the sentence 14? (A) User (B) System
Example Output:
Answer: (A) User