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

Sentence1: Booking was unsuccessful. Do you have a different time preference? Sentence2: Is it in the expensive price range? Sentence3: Yes book a table, thank you. Sentence4: I was happy to help, enjoy your meal. Sentence5: Sure, try booking that one for the same people, date, and time, please. Sentence6: Can you please give me a day and time that you would like to book a table for? Sentence7: No, that's all I need. Thank you for your assistance! Sentence8: I am looking for Korean food, in the Centre of town. Sentence9: No. How about finding another restaurant in the same area and price range. Sentence10: I've booked your table for 7 people on Monday at 13:45 at Kymmoy. Your reference number is 1MS5BUU6 . Is there anything else I can help you with today? Sentence11: There is one Korean restaurant in the centre, Little Seoul. Would you like the address and phone number? Sentence12: How about Kymmoy? It's an Asian restaurant in Expensive price range, located in Centre area. Sentence13: Yes, it is expensive. Are you interested in booking a table there? Sentence14: 13:45 on monday and a table for 7 please. I will need a reference number too. Question: Who has spoken the sentence 4? (A) User (B) System
Answer: (A) User

Sentence1: The address for that is 6 trinity street. Sentence2: I don't need to make the reservation now. Thank you though. I would like the address for Cambridge Contemporary Art please. Sentence3: Can you help me find a train coming from cambridge leaving on thursday? Sentence4: How many tickets please? Sentence5: I want to arrive by 21:30 if possible. Sentence6: Yes I have many options. What time would you like to leave or arrive by? Sentence7: Train TR3255 is arriving at 21:06,is that okay for you? Sentence8: Thanks for using our service today, glad I was able to assist you. Hope you have a great day. Sentence9: That could work for me. Sentence10: thank you, that will be all. good bye. Sentence11: I will be going to Leichester. Sentence12: There are 202 trains departing Cambridge on Thursday. Where do you plan to head to that day? Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

Sentence1: Are there any British restaurants in that area? Sentence2: Thank you for your help. Sentence3: Are you interested in a certain cuisine or price range? Sentence4: No, I'll be heading from the restaurant to the hotel. Sentence5: Graffiti's phone number is 01223277977. It's in the expensive price range. Do you want me to make a booking? Sentence6: Okay, I will do that. Will you be picked up at the hotel? Sentence7: Can I help with anything else? Sentence8: Sure. Cityroomz is located in the centre at sleeperz hotel, station road. Sentence9: That sounds great, do you have a number for Graffiti? What's the price range? Sentence10: phone number and postcode please and thank you Sentence11: Okay. Well, I've heard great things about Graffiti. How about that? Sentence12: yellow honda Contact number : 07467571080 Is there anything else I can assist you with? Sentence13: No but I do need a taxi and need it at restaurant by 03:15. Sentence14: You are welcome enjoy. Sentence15: I do not have a preference on price range. Sentence16: Hello! I'm looking for the hotel called Cityroomz. Can you give me some information, please? Sentence17: Thats all and thank you. Sentence18: There are three! Do you prefer moderately priced or expensive? Sentence19: Yes, I'd like to find a place to eat in the west area. Sentence20: The phone number is 01223304050 and the postcode is cb12tz. Question: Who has spoken the sentence 11? (A) User (B) System

Answer: (B) System