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

Sentence1: How about Caffe Uno, they are in the centre area. Their address is 32 Bridge Street City Centre and their phone number is 01223 448620. Sentence2: Perfect, thank you! Sentence3: I'm sorry, but I cannot find any expensive Lebanese restaurants. Sentence4: Thank you. Good bye Sentence5: Hello, I am looking for an expensive restaurant that serves Lebanese food. Sentence6: Can I get the address, phone number, and area of an Italian restaurant? Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System

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: No preference, either will do. Sentence2: Yes I need it for 5 nights from Tuesday for 6 people. Sentence3: No thank you. That will be all. Sentence4: ashley hotel in Northe part of town Sentence5: Okay thank you for calling. Enjoy your stay. Sentence6: Yes I have two options in the north and on in the east, any preference? Sentence7: I need a two star room, free parking included. Sentence8: I was able to book you at express by holiday inn cambridge, your reference number is MSGBHKWK, is there anything else that I can assist with? Sentence9: I'm sorry but that booking did not go through. Shall I try another hotel for you? Sentence10: Yes one in the same price range. Sentence11: I will. Have a nice day. Sentence12: So happy I was able to help. Good-Bye. Question: Who has spoken the sentence 10? (A) User (B) System
Answer: (A) User