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

Example Input: Sentence1: There are five total parks in Cambridge, four of which are free. The University Botanic Gardens cost 4 pounds to enter. Sentence2: Thank you for your help. Sentence3: Please help me find general information about park type places to go in Cambridge. Sentence4: May I please have the phone number, postcode, and area of a free park that you recommend? Sentence5: I have cherry hinton water play,located in the east and the post code is cb18dw. Here is the phone 01223446100. Sentence6: Have a nice day! Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Your table is booked (ref# SCHAG4OI). What time do you need that taxi? Sentence2: The phone number is 01223240089, and the post code is cb17sr. Is there anything else I can assist you with? Sentence3: Thanks. That is all for now. Sentence4: Aylesbury odge guesthouse,I will book it for you,is there anything else I can do for you ? Sentence5: Are any a guesthouse? Sentence6: Okay. Please call us if we can help you further. We hope you enjoy your stay. Sentence7: the good luck chinese food takeaway is great. Shall i book it ? Sentence8: No I just need you to recommend one for me. Sentence9: I don't need you to book it, I just need the phone number and post code please. Sentence10: Hello, I am looking for a place to stay that has free parking in the South area. Can you help me with that please? Sentence11: What time would you like to dine, and how many will be in your party? Sentence12: Thanks, also looking for a restaurant in the same part of town in the expensive range. Can you recommend one? Sentence13: I'd like it to arrive in time to get us there before 12:15. Sentence14: Yes I have 3 guesthouses matching your criteria. Would you like to book one of them? Sentence15: Your black ford taxi has been booked and your contact number is 07103139053. Sentence16: I have four options ranging in price from cheap to expensive ranging in from 3 to 4 stars. Sentence17: There will be 6 of us. We'd like 12:15 on Saturday please. Sentence18: Please book the restaurant and I also need a taxi. Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: No. that will be all. good bye. Sentence2: To help you find the train you are looking for could you please provide me with your departure site and destination? Also your departure time and arrival time? Thank you. Sentence3: We have lots of architecture, colleges and museums. Do you have a preference? Sentence4: The train ride is 60 minutes long. Sentence5: Nope, any will be fine. I just need an entrance fee and phone number for one. Sentence6: How long does the journey take? Sentence7: Have a great day! Sentence8: Okay, you can try Great Saint Mary's Church. Admission is 2 Pounds. Their phone number is 01223350914. Can I help you with anything else? Sentence9: Can you assist me in getting a train that leaves after 18:30? Thanks Sentence10: I have 6 trains for you to choose from. The earliest leaves at 18:32. Do you want me to book a ticket? Sentence11: Thanks, that's all I need for the train for now. Are there any interesting attractions in the town centre? Sentence12: I'm coming from Broxbourne going to Cambridge on Saturday. Question: Who has spoken the sentence 1? (A) User (B) System
Example Output:
Answer: (B) System