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

Ex Input:
Sentence1: It's a hotel. There are 5 guesthouses in the area. Do you prefer cheap or moderate for the price range? Sentence2: I want to go from cambridge to ely, no preference for time but I need to book for 8 people. Sentence3: Great. Can you help me with a train as well? I'm looking to come in from Ely. Sentence4: What is your destination? And do you have any preference for day, departure or arrival time? Sentence5: There are 5 guesthouses that have free parking. Should I book one of them for you? Sentence6: There are trains that run every two hours every day starting at 5:50. Do you know what day you'd like to travel? Sentence7: Okay, none of them DON'T offer free wifi? If not, I'll need the address for one that does have wifi, please. Tell me about your favorite. Sentence8: no, but it should have free parking, please. Sentence9: Thank you and enjoy your visit. Have a great day. Sentence10: The price doesn't really matter. I just need free parking. It doesn't really need to have internet though. Sentence11: The allenbell is a guesthouse on the east. The addres sis 517a coldham lane post code cb13js. Sentence12: There are no hotels that do not have internet, but 7 which do have it. Do you have a specific price range you'd prefer? Sentence13: Is that a guesthouse or a hotel? I'd really prefer a guesthouse. Sentence14: Hi. I'm looking for a hotel in the east. The internet is not needed. Sentence15: The Express by Holiday Inn Cambridge is in the area and has free parking, would you like more information? Sentence16: No, I don't need anything else right now. Thank you for your assistance. Good Bye. Sentence17: I'm looking for Wednesday , arrive by 11:30 for 8 people Please. Sentence18: Booking was successful, the total fee is 35.2 GBP payable at the station. You reference number is 7ZCVR4Q3 . Can I help you with anything else? Question: Who has spoken the sentence 15? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: They can be reached by calling 01223358966. Sentence2: Take care. Goodbye. Sentence3: How do I contact the Parkside, Cambridge police station? Sentence4: I'll need to address also. Sentence5: contact the Parkside, Cambridge police station Sentence6: No, thank you. Sentence7: The Parkside Police Station is located in Parkside, Cambridge and the Postcode is CB11JG. Is there anything else I can help you with? Sentence8: Help me, please, I was just the victim of a robbery! I need help right away! Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: What area is it in for reference? Sentence2: Can you tell me how many stars that guesthouse is and the area of town? Sentence3: The Acorn Guesthouse is a 4 star guesthouse located in the North. Do you need more information or would you like to book a room? Sentence4: Happy to help. Let us know if you need anything else. Thank you. Sentence5: yes. can you please give me the address? Sentence6: Christ's College is located in the city centre. Do you need any further information? Sentence7: I have 18 different colleges. Do you have a certain area you would like? Sentence8: I would like to stay in a hotel that is moderately priced and includes free parking. Can you help? Sentence9: I don't need to book at the moment, but I was interested in places to go in town. What colleges are there to visit? Sentence10: Nope, that's perfect. You've been very helpful. Sentence11: Acorn guest house is available would you like to try that? Sentence12: Certainly. Their address is 154 Chesterton Road, postcode cb41da. Can I help with anything else? Sentence13: christ's college at saint andrew's street and it's free. Sentence14: Surprise me. I do need an address and the entrance fee. Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:

Answer: (B) System