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

Sentence1: I'd like to find a 4 star guesthouse, please. Sentence2: The Place is a great nightclub in the south, located at 22 sidney street, post code cb23hg. The phone number is 01223324600. Is there anything else I can help you with? Sentence3: Yes, book it for me please. Thank you. Sentence4: It does not really matter. It will be just me starting on Friday for 3 nights. Sentence5: What attractions do you have in the south? Sentence6: I have found 18 guesthomes that match the criteria you listed. Is there any other specifications you have about the guesthouse (area,price range,etc) that you would like to tell me? Sentence7: Unfortunately, the booking was unsuccessful. Would you like to shorten your stay or try another place to stay? Sentence8: arbury lodge guesthouse is a moderately priced guesthouse in the north. How does that sound? Sentence9: The arbury lodge guesthouse is in the moderate price range. Sentence10: We have 8 types of attractions in the south? What type are you looking for? Sentence11: Sure, is there an area you prefer? Sentence12: I have to have free wifi Sentence13: I would like a room that is close to the nightclub for atleast 1 night up to 3 nights? Sentence14: Hmm, I'm not really sure. Do you happen to have any nightclubs? If not, what are my choices? Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User

Sentence1: Are there any that serve north american food? Sentence2: yes. please book for me a table for thee tommorow diner at 8 pm Sentence3: There phone number is 01223312598. Is there anything else I can assist you with? Sentence4: Yes, there is gourmet burger kitchen. It is an expensive restaurant. Would you like me to book it for you? Sentence5: Yes, the University Arms Hotel is located in the centre area and is on Regent Street. Would you like me to book a room for you? Sentence6: Okay can you also help me with a restaurant that serves Cantonese food in the city center? Sentence7: I just need their phone number. Sentence8: I need information on the university arms hotel. Sentence9: No I am good for now, thanks for all of your help. Sentence10: I need more info. Does the hotel have free parking and what is the price range? Sentence11: There aren't any restaurants in the city centre that serves Cantonese food. Would you like to try a different type of cuisine or try a different area? Sentence12: Thank you for contacting us and have a nice day. Sentence13: You asked about a hotel. Would you like to book a room or would you like me to help find a restaurant? Sentence14: It is in the expensive price range, but it does have free internet and free parking. Question: Who has spoken the sentence 9? (A) User (B) System
Answer: (B) System

Sentence1: We have one train departing bishops stortford at 23:29 and arriving in cambridge at 24:07. Would you like me to book that for you? Sentence2: Yes, please. I also need reference number once it's booked. Sentence3: i have 44 places. can you tll me how much entry fee range is to narrow down our options? Sentence4: Yes, can you help me find a train please. I will be traveling on Monday sometime after 21:45. Sentence5: Try clubbing at Kambar. The address is 1 wheeler street and the phone number is 01223842725. Do you need anything else? Sentence6: I'd like some help finding an interesting attraction in the center of town. Sentence7: Great, how many tickets do you want? Sentence8: I don't have a preference. Just recommend one and send me it's address and phone number. Sentence9: I also need to see the schedule between Bishops Stortfod and Cambridge. Sentence10: Is this for a Train? If so could you provide me with a day and/or time you are looking for? Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System