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

Sentence1: Is there any Indian food on the west side of town. Sentence2: You're welcome. May I help with another query? Sentence3: Cocum is located at 71 Castle Street City Centre and their phone number is 01223 366668. Their price range is expensive. Sentence4: The price range doesn't matter. Sentence5: There are 6 Indian restaurants in the west part of town. What price range do you have in mind? Sentence6: There are no Hungarian restaurants in the west of town. Would you like to change your query? Sentence7: I would like a Hungarian restaurant in the west of town. Sentence8: Yes, but just for one. Sentence9: Would you like the name, address and phone number of a few of them? Sentence10: Goodbye. Sentence11: Thank you! Sentence12: Nope, I'm good. Thanks again. Question: Who has spoken the sentence 9? (A) User (B) System
Answer: (B) System

Sentence1: It looks like there are hourly trains starting at 5:09. Did you have a particular day and time in mind? Sentence2: Thanks for the help. Sentence3: Will you train arriving at 07:54 work ok for you? Sentence4: Yes I need it booked for 2 people please. Sentence5: Unfortunately, there are no other Italian restaurants in the east. Would you like me to find you one in another area? Sentence6: Is the pizza hut in the moderate price range? Sentence7: I've successfully booked 2 tickets for you, the reference number is 9FE8N16G . Sentence8: I am looking for an Italian restaurant in the east. Sentence9: Pizza hut fen ditton matches your description. Sentence10: I guess it'll have to do. Can you book us a table for 2 on Wednesday at 14:00 please? Sentence11: Uh, no pizza hut's please. Something more classy please. Sentence12: Absolutely! To start, let me get more details. What are your desired departure and arrival cities? Sentence13: Thanks so much! Can you help me with train tickets too? Sentence14: Yes, it is. Should I book it for you? Sentence15: Yes, I'd like to book the train for Wednesday and I want to arrive in Cambridge by 08:30. Sentence16: Booking was successful. The table will be reserved for 15 minutes.Reference number is : H4BTTI6P . Sentence17: The train should go to cambridge and should depart from leicester. Sentence18: Have a great day! Question: Who has spoken the sentence 7? (A) User (B) System
Answer: (B) System

Sentence1: There are 9 Chinese restaurants that match your criteria. Is there a specific part of town you'd like to dine in? Sentence2: And where will you be traveling to and from? Sentence3: We have the Hakka and The Hotpot that match your search. Do you have a preference? Sentence4: Let's go with Hakka, and make a booking for 7 people at 19:15 on Monday. And give me the reference number please. Sentence5: From stevenage to cambridge. Sentence6: Great the booking was successful, your reference number is 4DV3FA1B . Sentence7: Hi, I want to find a Chinese place to eat that's expensive. Sentence8: I'll take the one that arrives at 7:54. How much do those tickets cost? Sentence9: It's my pleasure. Thanks for using Cambridge TownInfo! Sentence10: Thanks very much. I also need a train for Monday, arriving by 9:45. Sentence11: There are 2 trains that arrive by 9:45. One leaves at 5:54 and one leaves at 7:54. Sentence12: The ticket is 12.80. Would you like me to book this for you, or do you have other questions I can help with? Sentence13: I'd like to dine in the north if possible. Sentence14: I'll book the train myself. Thanks for your help today - I'm all set! Question: Who has spoken the sentence 1? (A) User (B) System

Answer: (B) System