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

Input: Consider Input: Sentence1: 5 nights, please. Sentence2: Sure. Please book five tickets for me and reply with the reference number. Sentence3: It's booked and your reference number is LFE8G8CE . The address is 154 chesterton road and postcode is cb41da. Anything else I can do for you? Sentence4: Where will you be departing from? Sentence5: Enjoy your visit. Please give us a call if you need further assistance. Sentence6: 5 people starting on Sunday. Sentence7: Yes, what area would you like to stay in? Sentence8: Great, let's book that one. Please send me the address, postcode and reference number. Sentence9: Booking was successful, the total fee is 22 GBP payable at the station. Reference number is : BUBQRD4R . Sentence10: Yes I also need a train that leavers after 12:00 going to ely. Sentence11: There is the Acorn guesthouse in the moderate price range and 4 stars. It also has free wifi and parking. Sentence12: There is no train leaving 12:00, but train TR5484 leave 13:50 do you want to adjust your time? Sentence13: Don't care. but I'd like a place that's Moderately priced and offers free WiFi. Sentence14: East London. Thanks Sentence15: How many days do you plan on staying? Sentence16: That is all I need, good bye. Sentence17: How many people would you like it booked for and for what days please? Sentence18: Hi, I am hoping to find a 4 star hotel room. Can you recommend one for me? Question: Who has spoken the sentence 9? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: I do not care about the area but I would like it to be expensive. Sentence2: How about the Gonville Hotel which is centrally located? It has internet and is expensive. Sentence3: I found 5 hotels matching your request. I would recommend Huntingdon Marriott Hotel located in the west. It has a 4 star rating. Sentence4: Will you be needing a reference number? Sentence5: On what day will you be checking in? Sentence6: 4 people will be staying Sentence7: I also need a place to stay? Sentence8: Your table will be reserved for 15 minutes. Your reference number is GDZZ5T1Y . Can I assist you further? Sentence9: That is all, thanks. Sentence10: Booking was successful. Reference number is : M6FRXJOV . Sentence11: I have many to choose from. Do you have a preference for internet or parking? Sentence12: Alright! How many people will be staying starting what day? Sentence13: There are 11 European style restaurants. What price ranges are you looking for? Sentence14: Yes, I would like it to have internet. Sentence15: That sounds perfect. Let's book it. Sentence16: There are 33 hotels to choose from. Can we narrow this down? Are you interested in a particular part of town or specific price range? Sentence17: Expensive price range. Please book it for 4 people at 18:15 on Monday Sentence18: Can you help me find some european food in Cambridge? Sentence19: How about price range? The hotel should also be very expensive. I won't settle for less and neither will Fi-Fi. Sentence20: I will be staying on Monday. Sentence21: Yes I will definitely need that. Sentence22: Great. If you need help in the future, please contact us. Enjoy your stay. Question: Who has spoken the sentence 16? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: Okay, great. Have a safe trip. Goodbye. Sentence2: Yes please. I need it booked for 1 person for 2 nights starting tuesday. Can i get a reference number? Sentence3: I have found the allenbell guesthouse. It meets all of your criteria, is in the cheap price range, and provides internet and parking. Would you like me to book it? Sentence4: Thank you, that is it for today. Goodbye. Sentence5: The reference number for your booking is KEBFTR7I . Can I do anything else for you? Sentence6: I need a place with rated 4 stars in the east. Can you help me find one that like a guesthouse? Question: Who has spoken the sentence 1? (A) User (B) System


Output: Answer: (B) System