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 believe that's all I need. Thanks! Sentence2: It is an expensive restaurant on the west side of town. Would you like me to reserve a table for you? Sentence3: Yes I have many options for you. How about the Tandoori Palace? Sentence4: I'm looking for an Indian restaurant in the west. Sentence5: That might work. What is the price range of Tandoori Palace? Sentence6: Sure, it is located at 68 Histon Road Chesterton in the cb43le post code. Can I help with anything else today? Sentence7: You are welcome. Have a nice day. Bye. Sentence8: No that's OK, but could you give me their address and postcode please. Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Yes, after 8:30 would be best. Sentence2: I have booked you a train ride on TR6488 which will depart at 09:21 and will arrive at 10:10. The total fee will be 10:24GBP. Would you like the reference number? Sentence3: No thank you. Thanks for your help. Sentence4: Great, thank you. That's all I needed. Sentence5: What is the total travel time? Sentence6: The post code is cb21ab and the phone number is 01223323737. Where would you like to book a train to? Sentence7: Where are you departing from? Sentence8: I would like the post code and phone number for the restaurant please, and I would like to book a train. Sentence9: The total travel time will be 49 minutes. Sentence10: You're welcome. Is there anything else I can do for you today? Sentence11: I'm leaving from Cambridge. Sentence12: I think something cheap. If not, go up to moderate. Sentence13: Do you have a time in mind? Sentence14: Good day to you. Sentence15: I suggest pizza hut city centre, it has a cheap price range. Would you like me to book it or would you like more information? Sentence16: Yes, Please book the reservation. Sentence17: I need to go to Stevenage on Sunday. Sentence18: I'd be happy to book a table for you. Please let me know the day, time, and the number of people in your party. Sentence19: There are nine of them. What price range do you prefer? Sentence20: I am looking for an Italian restaurant located in the centre of Cambridge. Question: Who has spoken the sentence 15? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: No that is it. Thank you so much. Sentence2: Okay and which day and time would be best for you? Sentence3: I have No matching records found. would you like something different ? Sentence4: I would also like to go to a museum nearby in the south part of town. Please also give me its address and entrance fee. Sentence5: Wednesday at 13:00, if that's available. Sentence6: Yes, a table for six, please. Sentence7: I have found the yippe noodle bar. It is located in the centre. Would you like a reservation? Sentence8: How about 12:00? Sentence9: I was not able to book, can I try another place or time? Sentence10: I will. Goodbye. Sentence11: Hi, I'm looking for a moderately priced restaurant that serves christmas food. Do you know of any? Sentence12: Do you know of any restaurants that offer Italian food that is moderately priced? Sentence13: Goodbye. If you need anything else, don't hesitate to contact us again. Sentence14: You're very welcome. Have a great trip! Sentence15: I have Byard Art Museum in the south. They offer free admission. They are located at 14 King's Parade. Is there anything else I can do for you? Sentence16: Your table is reserved for 12:00. Your reference number is XOY3DO4V . Sentence17: I changed my mind. Could you find a restaurant that serves asian oriental food? Sentence18: byard art museum is located at 14 king's parade and the phone number is 01223464646. Let us know if we can help further. Sentence19: Thank you again. Sentence20: There are 5 Italian restaurants in the moderate price range. What area do you prefer? Question: Who has spoken the sentence 5? (A) User (B) System
Example Output:
Answer: (B) System