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

Sentence1: Yes, please provide a suggestion. Sentence2: Can you find me a good restaurant in the city centre? Sentence3: Okay, how about Eraina that's on Free School Lane City? Sentence4: Sounds great. Would you book me a table for 8, for Monday at 19:00? Sentence5: There are 11 museums is that area. The great thing is they are all free. Do you want additional information on any of them? Sentence6: Thank you so much for all your help. Sentence7: They are all located in the centre the same as the restaurant. Would you like me to recommend one? Sentence8: Are there any entertainment venues near the restaurant? Sentence9: Your table is booked! Reference #: GV2YF6H5 . The table will be reserved for 15 minutes. Can I assist you with anything else today? Sentence10: You are welcome. Enjoy your time in Cambridge. Goodbye. Sentence11: What area are they in? Sentence12: The fitzwilliam museum has amazing art and sculpture. The address is trumpington street and the phone number is 01223332900. Do you want more information? Sentence13: Your red toyota has been booked and its contact number is 07932820731. Sentence14: there are quite a number. what is your price range? Sentence15: The attraction should be in the same area as the restaurant and should be in the type of entertainment. A museum Sentence16: I will also need a taxi from the attraction to my dinning. Sentence17: I don't really have one but would like to try a European restaurant. Sentence18: There are 44 options available. Is there anything particular you are interested in ? Question: Who has spoken the sentence 15? (A) User (B) System
Answer: (B) System

Sentence1: Can you recommend a moderately priced restaurant in the South part of town? Sentence2: could i have the address and phone number please? Sentence3: sure, pizza hut cherry hinton is located at G4 cambridge leisure park clifton way cherry hinton and the phone number is 01223 413000. Is there anything else I can help you with? Sentence4: Would you prefer Italian or Modern european food? Sentence5: I don't care. Either one is fine. Sentence6: No, that is all I needed. Thank you. Bye bye. Sentence7: How about Pizza Hut Cherry Hinton. It serves Italian food, is in the moderate price range, and in the south part of town. Sentence8: Goodbye. Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System

Sentence1: Yes, please. We will be arriving on Saturday and staying 4 nights. There are 6 people in our party. Sentence2: I do not have any hotel or guesthouse matching that description Sentence3: Okay, enjoy your visit to Cambridge! Sentence4: I have 32 locations offering free wifi. Do you have a particular area of town in mind? Sentence5: Okay, can we try one with a star of four? Sentence6: Okay, can you give me the phone number for ask? Sentence7: The avalon guesthouse is four starts and meets your needs, would you like me to book you? Sentence8: I need a place to dine. Sentence9: I want a cheap italian place in the centre Sentence10: I need a place to stay that has free wifi. I don't need parking though. Thank you. Sentence11: No that will be all thanks. Sentence12: a star of 1 and in the North part of town thank you Sentence13: There are three options to choose from. I recommend ask. Sentence14: The phone number at ask is 01223364917. Would you like me to make a reservation for that? Sentence15: What type of cuisine are you looking for and what area of town? Sentence16: Booking was successful. Reference number is: M7X0176H . Is there anything else I can help you with today? Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System