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

Input: Consider Input: Sentence1: The address of the Nirala is 7 Milton Road Chesterton at the cb1uy postcode. Their number is 01223360966. Sentence2: Then may I suggest the a and b guest house? Sentence3: I want the cheap one. Sentence4: royal spice it is. Shall book it for you ? Sentence5: I also will need a taxi to pick me up at the hotel and get me to the restaurant by 02:15. Sentence6: Booking was successful your ref number is 1R8GSLHI, anything else today? Sentence7: On second thought, I'd like to go with Nirala? My friends want to try something a little more moderately priced. Can you give me the postcode, address and phone? Sentence8: What area would you like it to be in? Sentence9: Goodbye, enjoy your stay Sentence10: You have two options, The Nirala is moderately priced, royal price is cheap, any preference? Sentence11: I don't have a preference for what area, I do however want free WiFi. I would also like to stay in a guesthouse. Sentence12: The guesthouse is located on the east side at 124 tenison road. I am trying to book it but the system must be busy. I'll try again in a minute. Sentence13: Thanks that will be all for today. Goodbye. Sentence14: Yes, I'd like to find an Indian restaurant in the north please. Sentence15: I have booked grey volkswagen with contact number 07588046247. Anything else I can be of help? Sentence16: yes can you book it for 7 people and 3 nights starting from thursday ? Sentence17: I am looking to stay at a 4 star rated place in the moderate price range. Sentence18: Please try again Question: Who has spoken the sentence 10? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: i want to find a hospital in town Sentence2: No, can I get the phone number, address, and postcode? Sentence3: welcome. at your service next time Sentence4: Addenbrookes Hospital is nearby, at Hills Rd, Cambridge. Do you need a particular department? Sentence5: you are always welcome Sentence6: Great, that's all I need today! Thank you! Sentence7: The phone number is 01223245151, The address is Hills Rd, Cambridge. The Postcode is CB20QQ. Sentence8: Thank you for your help. Question: Who has spoken the sentence 6? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: I need a 3 star guesthouse in the same area. Does not need to include internet. Sentence2: I have several attractions in the west for you. Is there a certain type you have in mind? Sentence3: I would like the phone number and the post code please. Sentence4: i suggest queens college in the silver street. you want the address? Sentence5: No thank you. I just needed the information. That's all I need. Sentence6: Great! Have a good day! Sentence7: No, what would you recommend? Sentence8: Sure! The phone number is 01223335511 and the postcode is cb39et. Is there anything else I can help you with today? Sentence9: There is a guesthouse named Hobsons House located in the west with 3 stars. It is moderately priced and has internet and parking. Would you like this one booked? Sentence10: I am staying in the west part of cambridge and would like to know about some places to go. Question: Who has spoken the sentence 5? (A) User (B) System


Output: Answer: (B) System