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

Sentence1: Yes, in the South, I am also looking for Romanian food. Sentence2: Sorry I don't have anything for that either. Sentence3: Can you try chinese? Sentence4: What is the address for the museum? Sentence5: You are booked at Nando's, a cheap portuguese restaurant in the south. Your reference number is ZS1PDFZA . Sentence6: Sorry I don't have anything for that either. Sentence7: Same area and price, but portuguese, anything for that? Sentence8: Does location matter? Sentence9: You choose as long as it is cheap. Could you book a table for 7 people at 15:45 on Wednesday? Sentence10: I found only the Byard Art musuem in the south. There's no entry fee. Phone number, 01223464646. Sentence11: You're welcome, let me know if I can assist with anything else. Sentence12: I need a place to eat that is cheap. Sentence13: There are no restaurants that meet what you're looking for. Is there anything else you'd like to try? Sentence14: Great! Thanks. Have a good night. Bye. Sentence15: it is in the north address is 14 king's parade and free admittance Sentence16: Are there any museums close to restaurant? Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

Sentence1: How about Italian food instead and could I have the phone number if you find a restaurant Sentence2: There are no matching restaurants. Would you like me to perform another search? Sentence3: Prezzo is a moderately priced Italian restaurant in the west side of town. The phone number is 01799 521260. Sentence4: Thank you, goodbye. Sentence5: West side of town. Sentence6: Thank you good bye Sentence7: I want a restaurant with corsica food please. Sentence8: What is the area you would like? Question: Who has spoken the sentence 4? (A) User (B) System
Answer: (A) User

Sentence1: Hi. I am looking for a hotel to stay in. Sentence2: Thanks for serving me! Sentence3: Is there an expensive hotel with 3 stars that is located in the south? Sentence4: Yes, where will you be departing from? Sentence5: I have options available would you like me to book something for you. Sentence6: Do you have a hotel in mind or a price range? Sentence7: Yes. I'm looking for a 3 start hotel Sentence8: Your welcome. Have a great day! Sentence9: Can you locate a train that will take me to the hotel. Sentence10: I'd like to leave after 13:00 on Sunday and I want to go to Kings Lynn. Sentence11: You too much appreciated. Sentence12: Glad to be of service. Goodbye. Sentence13: I just need the train ID, please. Sentence14: Yes, there is the lensfield hotel. Sentence15: I recommend the gonville hotel located in the centre of town. Would you like me to book you a room or do you need anymore information? Sentence16: I was able to book your room per your request. The reference number is : 9RXKQ7C3 . Sentence17: I wanted somewhere expensive :D Sentence18: Sure thing TR7423. Thank you Sentence19: book it for 1 people and 2 nights starting from saturday. Sentence20: there are five expensive hotels in cambridge. Do you have a star preference or area in mind? Sentence21: What is your destination, and what time would you like to leave? Sentence22: The train should depart from cambridge and should leave on sunday. Question: Who has spoken the sentence 12? (A) User (B) System

Answer: (A) User