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

Example Input: Sentence1: Thank you for using the Cambridge Town Info Centre Services. I hope you enjoy your time in Cambridge! Sentence2: is it in moderate price range? Sentence3: Do you have anything in the moderate price range? Sentence4: Most of our nightclubs are right in the center of town. Kambar is my favorite. Sentence5: No, thanks. Can you find a gastropub restaurant in the centre, please? Sentence6: it is an expensive gastropub Sentence7: Yes, there's the the cow pizza kitchen and bar. Sentence8: They're located on Corn Exchange Street. Would you like me to make a reservation for you? Sentence9: Awesome! Can you provide me with the address, entrance fee, and postcode, please? Sentence10: The address is 1 wheeler street cb23qb and admission is 5 pounds, would you like their phone number? Sentence11: I am looking for something fun to do while in town. A nightclub would be nice. Sentence12: What is their address? Sentence13: backstreet bistro is an expensive gastropub in the centre area. Would you like more information? Sentence14: No, I just need information for today. You have answered all of my questions. Thanks so much. Bye. Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I want to know if the Worth House is still renting rooms. Sentence2: Yes make the booking or me for 2 and provide the reference number. Sentence3: Ok, I was able to make your reservation. Your total fee is 33.2 GBP. Your Reference number is : POE0NTR1 . Sentence4: yes book for 2 people and 3 nights from thursday Sentence5: Thank you very much. That is all the information I need. Sentence6: The TR1047 leaves Cambridge for London Liverpool Street Wednesday arriving at 07:27. The price is 16.60 lbs. Can I book it for you? Sentence7: Where are you departing from, and what day? Is there a certain time you need to leave or arrive by? Sentence8: i am planning your trip in Cambridge Sentence9: Sure, you really should be more pleasant. I need to get to London Liverpool Street on Wednesday by 20:45 please. Sentence10: Okay great! Have a great trip! Sentence11: Thanks. I also need to find a train to london liverpool street. Sentence12: Are you planning a trip to Cambridge? If so, what type of information are you looking for today? Sentence13: Since this is the cambridge help desk, I assumed that, I really need the date and time to get you booked. Sentence14: I am leaving from Cambridge. Sentence15: Yes they are. Would you like to book a room? Sentence16: Booking was successful. Reference number is : WX6QA7D0 . Question: Who has spoken the sentence 6? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Try booking the bridge house please. Sentence2: I have 14 entries, would you like it to have free parking? Sentence3: I have booked the Hamilton Lodge for you. Starting on Saturday for 2 nights for 7 people. Your reference number is 63GDBABK . Is there anything else I can do for you? Sentence4: Yes please if it's in the same price range. Sentence5: I have 32 hotels with free wifi. Is there a specific part of town you would like to stay in? Sentence6: Okay great. That is all I need. Sentence7: I have the bridge house south area, the hamilton lodge in the north and hobsons house in the west. Which one would you like me to book? Sentence8: I would like 3 stars or higher please Sentence9: I'm sorry, that one is unavailable. Would you like to try another? Sentence10: So glad I could help. Have a great day! Good-Bye! Sentence11: I have the Hamilton Lodge in the north, would you like me to book that one? Sentence12: No, it just needs to be in the moderate price range. I prefer guesthouses. Sentence13: Yes, please. And I will need the reference number. Sentence14: Is there a star rating you would prefer to stay at Sentence15: That does not matter. What ones have availability for 7 people for 2 nights starting on Saturday? Sentence16: I am looking for a place to stay with free wifi. Question: Who has spoken the sentence 2? (A) User (B) System
Example Output:
Answer: (A) User