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

Ex Input:
Sentence1: Can I help you with anything else today? Sentence2: I am looking to get an address and entrance fee for a theatre. Can you search for one for me using the criteria I mentioned earlier? Sentence3: There is no specific area. Sentence4: Entrance fee is not mentioned. There are no restaurants in that area that fit your criteria. Is there something else I can look up for you? Sentence5: Yes, get me a table for 3 at 15:30 on Saturday. Sentence6: Fantastic, have a great day! Sentence7: Is there a entrance fee? I am also looking for a cheap north american restaurant to dine at on the east side. Any recommendations? Sentence8: No that will be all! Thank you! Sentence9: Hi, can you please give me information on theatres in town? Sentence10: The Missing Sock is an international restaurant in the East and has a cheap price range. Would you like a reservation? Sentence11: I have made those reservations and the reference number is Y40MJDC0 . Sentence12: I have 5 theaters located in the centre and south which area would you like? Sentence13: Are there any serving international cuisine in the same area and price range? Sentence14: Great, thanks for your help! Sentence15: I see. What sort of information can I help you with? Sentence16: The address for adc theatre is park street. Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: book a table for 6 people at 12:00 on wednesday Sentence2: Are you looking for one in a particular area? Sentence3: I'm looking for parks in Cambridge can you help me? Sentence4: No, area doesn't matter. What park would you recommend? Sentence5: Thank you that is all I need for now. Sentence6: Okay great! I hope you have a wonderful day! Sentence7: Tandoori Palace in the west is a wonderful Indian restaurant. Would you like their phone number or a reservation there, perhaps? Sentence8: I was able to book a table for 6 they will hold the table for you for 15 minutes. The reference number is M4ILDKD4 . Sentence9: The postcode is cb18dw. Sentence10: There are fifteen Italian restaurants in town. Do you want a specific part of town, or maybe a certain price range to narrow down the search? Sentence11: I need help finding a book on italian food Sentence12: No just the postcode please. Sentence13: Thanks. Could you help me find and expensive Indian restaurant perhaps? Sentence14: Cherry Hinton Water Play park in the east is an excellent place to keep cool on hot summer days. Would you like the address? Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: Can you try in the north then? Sentence2: Yes please, I need a table for 6 on Sunday at 17:45. Sentence3: Can you try booking for 4 nights instead? Sentence4: I was not able to find any hotels matching those requirements. Sentence5: Is there any moderately priced hotels in the city centre then? I need a hotel for the same group of people for 5 nights starting the same day. Sentence6: Could you try to book us there for 4 nights instead? Sentence7: Looks like there was an error in our system earlier. There are two moderately priced hotels in the north - The Ashley and The Lovell Lodge. Sentence8: While in Cambridge I need to find a restaurant called the rice boat. Sentence9: I was able to book the Lovell Lodge for 4 nights starting Sunday for six people. The reference number is XTY5KJI9 . Sentence10: I'm happy to have helped you. Thank you for using Cambridge TownInfo centre. Have a nice day! Sentence11: Oh sure, It's for 5 nights starting sunday for 6 people please. Sentence12: The Lovell Lodge sounds nice. Please try for 5 nights but we can settle with 4 if we need to. Sentence13: I'm also looking for a moderately priced 2 star hotel with free wifi in the south. Sentence14: How many people is the hotel for and which day would you like to begin your trip on? Sentence15: Can you try the other hotel then? Sentence16: I was not able to find any hotels matching those requirements. Sentence17: Thank you very much! That was everything i needed. Take care and have a great day. Sentence18: Rice Boat is located at 37 Newnham Road in Newnham. Would you like to book a reservation? Sentence19: I was not able to book that one either. Can we try a different day perhaps? Sentence20: Wonderful. You're table is reserved for 15 minutes. The reference number is JM6MM56Y . Sentence21: Yes, which of the two would you prefer? Ashley Hotel or Lovell Lodge? Sentence22: I'm sorry there is nothing available on those days. Would you like to shorten your stay or try the other hotel? Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System