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: I have train TR4494 that will be departing at 09:59 and arriving by 11:27. Would this interest you? Sentence2: Can you tell me where you are departing from please and the number of tickets you will need? Sentence3: Are you looking for an attraction in the Centre of town as well? Sentence4: what kind of attraction would you like to visit? Sentence5: I need to arrive by 12:15 please. Sentence6: Yes. Can you try 16:15? Sentence7: Yes, attractions in the Centre of town would be great. Sentence8: Yes, Bedouin is in the expensive price range and is in the centre of town. Sentence9: Do you prefer a certain type of cuisine? Sentence10: I'll be leaving Cambridge and need 7 tickets. Sentence11: Hi. I'll be traveling to there and can't wait to try the restaurants there. Could you help me find a place? Sentence12: I have gotten you 7 tickets on train TR4494, reference number ENXXH8XH and the total fee is 116.2 GBP. Is there anything else I can help you with? Sentence13: Yes, I would like to make a booking please for 7 people. Sentence14: My apologies. The table you requested is not available at 17:15 on Monday night. Would you like to try a different day or time? Sentence15: Your restaurant and travel accommodations have been booked. Reference number KCIWXESP and HTEPD4LJ respectively. Is there anything else I can help you with today? Sentence16: That would be it for today. Thank you Sentence17: Alright, there are 10 trains traveling to London Liverpool Street. Is there a particular departure or arrival time you are wanting? Sentence18: No you have been most kind. Thank you for doing the bookings. Are there any attractions in the same area? Sentence19: Yes, I would like to try South African cuisine. Sentence20: Is it in the expensive price range? Sentence21: I have decided I don't really need an attraction. I think that will be all today. Sentence22: I have a restaurant called Bedouin located downtown an 100 Mill Road, if that interests you. Sentence23: On what day would you like to book? Sentence24: We will be there monday night. Sentence25: Yes, go ahead and book that restaurant for 7 people at 17:15, please. Sentence26: I am also needing train tickets for Tuesday going to London Liverpool Street. Sentence27: I was able to make reservation for you on Monday at 16:15 for 7 people. Your reference number is KCIWXESP . Is there anything else I can do for you? Sentence28: I hope you enjoy your stay in Cambridge. Goodbye! Question: Who has spoken the sentence 10? (A) User (B) System

Output: Answer: (A) User


Input: Consider Input: Sentence1: book a table for 6 people at 11:15 on tuesday at the Hakka Sentence2: Sure what type of food are you wanting to eat? Sentence3: Do they have free wifi? Sentence4: I booked the taxi, it is a yellow tesla the contact number is 07809860598. Is there anything else I can assist with today? Sentence5: I will need a taxi to get to the restaurant. Sentence6: Booking was successful, and your reference number is TDVD6XSM . Is there anything else I can assist you with? Sentence7: That is all, thank you for your help. Sentence8: The Hamilton Lodge sounds perfect for you. Would you like to know more? Sentence9: I'm glad we were able to help. Sentence10: I would like to find an expensive restaurant in the north part of Cambridge. Sentence11: Yes, they do have internet. Shall I make a booking? Sentence12: There 2 of them - the Hakka and the hotpot. Which one would you like to try? Sentence13: Yes please. I want 4 nights from tuesday, and for 6 people. Give me the reference number too. Sentence14: I am looking for a hotel in the same area that has free parking. Sentence15: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 48WF5G7X . Can I help with anything else? Sentence16: How about chinese food? Question: Who has spoken the sentence 15? (A) User (B) System

Output: Answer: (B) System


Input: Consider Input: Sentence1: Does it have four stars? Sentence2: No I would like to stay in the centre. Can you recommend a cheap one in that area instead? Sentence3: Great. Thanks so much. Can you also get me a taxi from the Alexander B&B to Dojo Noodle Bar and get me there by 11:00? Sentence4: The address is 56 Saint Barnabas Rood, and they do have free parking. Sentence5: I don't have a preference for food type. I do need reservations for 8 at 12:00 on thursday. Sentence6: The City Room Hotel meets your requirements. Do you need the phone number? Sentence7: The Alexander Bed and Breakfast has 4 stars and is within your price range. Would you like me to book that for you? Sentence8: Booking completed! Booked car type : grey toyota Contact number : 07149685492 Sentence9: I'm sorry, it only has 0 stars. Would you like to try a different part of town? Sentence10: Yes, how about 11:00 instead? Sentence11: There are over 110 entries that fit the area and price range, what food type did you have in mind? Sentence12: Okay you have reservations at dojo noodle bar and your reference number is WJJDIBTF . Sentence13: That booking was unsuccessful. Could you do another time? Sentence14: I'm looking for a moderate place to stay in the centre. Sentence15: what their address? do they have free parking? Sentence16: Thank you and enjoy your visit to cambridge. Have a great day. Sentence17: Ok, thank you, that will be all. Goodbye Sentence18: Great can I also find a restaurant in the centre of town in the cheap price range? Question: Who has spoken the sentence 2? (A) User (B) System


Output: Answer: (A) User