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: Hmm. What about museums? Sentence2: Booking completed! Your contact number is 07349924614. The car type is a black ford. Can I help you with anything else? Sentence3: I don't care about wifi or parking. To be honest, I don't care what area it is in, either. What would you pick? Sentence4: Cambridge and county folk museum is available, would you like that? Sentence5: Can you tell what time you want to be picked up and at which location? Sentence6: I'm also looking for an attraction preferably on a boat in the west. Sentence7: Sure. That sounds good. Can I get their address and postcode please? Sentence8: Thanks! I also need a taxi between both locations, please. Sentence9: Wow that was fast thanks! No, that is all I needed. Hope you have a wonderful day. Sentence10: Sounds nice. What is the address and postcode please? Sentence11: I want to leave the hotel by 23:15. Sentence12: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence13: I'm looking for a moderately priced guest house. Can you recommend one? Sentence14: There are 15 options. Do you have a specific area you would like to stay in? And are you interested in wifi and parking? Sentence15: I would go with the Acorn Guest House if I were choosing a moderately price guesthouse. Sentence16: Sure their address is 2-3 Castle Street and the postcode is cb30aq Sentence17: The address is 154 Chesterton Rd, the postal code is cb41da, is there anything else that I can assist with? Sentence18: There are no boats in the west, can I try something else for you? Question: Who has spoken the sentence 11? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: You're welcome. Can I help you with anything else? Sentence2: That is all. Thanks Sentence3: The post code is CB11JG. Sentence4: Thank you, what's the post code? Sentence5: Thank you for your help Sentence6: Cambridge, parkside police telephone number 01223358966. Sentence7: I need to get to the nearest police station, can you assist me? Sentence8: Okay. Have a good day and thanks for using our system. Question: Who has spoken the sentence 4? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: The alexander bed and breakfast is a cheap hotel in the centre area with free parking. Do you want me to book it? Sentence2: Starting from sunday, please. Sentence3: Thanks for you're help. May I also have the address and phone number of the restaurant. Sentence4: Thanks can I also get a restaurant? I am looking for one in the centre of town serving korean food Sentence5: Which three nights would you like me to book the hotel for? Sentence6: There are many options to choose from but all of them are guesthouses except one. Do you need a hotel or can it be a guesthouse? Sentence7: Not a problem. You will be picked up by a white volvo, contact number 07532822307. Sentence8: Hi, I am looking for a cheap 4-star hotel near local restaurants. Sentence9: No problem. Your booking was successful for four people, starting Sunday for three days. Your reference number is 3BUQP529 . Sentence10: No, but I will need a taxi to the restaurant. I'll need to get from the Alexander B&B to Little Seoul, leaving the hotel at 13:30. Sentence11: Yes, please book it for 4 people and 3 nights. Sentence12: Of course, have a nice day! Sentence13: I don't mind what type of hotel. But it needs to be in the centre and offer free parking. Sentence14: Thank you for all your help! Sentence15: The only Korean restaurant in the center of town is Little Seoul. It's expensive, but very good. Would you like to book a table there? Sentence16: The phone number is 01223308681 and their address is 108 Regent Street City Centre. Question: Who has spoken the sentence 15? (A) User (B) System


Output: Answer: (B) System