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

Sentence1: There are 5 expensive Indian restaurants available in the west. Would you like me to book one of those for you? Sentence2: Can you help me find and expensive restaurant in the west? Sentence3: I would like to eat at an indian restaurant please. Sentence4: You are welcome. Thank you for calling Cambridge TownInfo Centre. Good bye. Sentence5: Yes, please choose one and book it for 6 people at 13:30 on Thursday. Sentence6: We have nine. What sort of cuisine would you like? Sentence7: No, that's it for today. Thank you for all your help. Good bye. Sentence8: Ok. I was able to book cocum on thursday at 13:30 for 6 people. Your reference number is LTZ2TPIA . Can I help you with anything else? Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

Sentence1: Okay. Riverboat Georgina is a boating attraction in the north. How about that? Sentence2: I don't have a preference. I just need it in the same area. Sentence3: What star rating do you prefer? Sentence4: Booking was successful! Your reference number is 8GLX5O9J . Is there anything else I can do for you? Sentence5: Yes please, I need 2 nights for 8 people and we will be arriving on Tuesday. Sentence6: Looking for a hotel that is in the north part of town. Sentence7: I recommend the Alpha-Milton Guest House on 63 milton road. Would you like me to go ahead and book you a room? Sentence8: The hotel should be in the north and doesn't need to include internet.and should be in the moderate price range Sentence9: Can you help me find an attraction to visit that is in the same area as my hotel? Sentence10: Absolutely, their phone number is 01223902091. Sentence11: Sure, there are four attractions in the north. Do you prefer boat, park, or swimmingpool? Sentence12: Thanks. That's all I needed for today. Sentence13: That sounds great, could I get their phone number please? Sentence14: Okay, have a wonderful visit! Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

Sentence1: There's one that departs at 12:21. Would you like to take that train? Sentence2: YEs can you book that for me please? Sentence3: I need to get to Leicester. Sentence4: I have 3 choices of chinese restaurants. 2 are more expensive and there is 1 option that is cheaper. Do you have a preference? Sentence5: The address is Cambridge Leisure Park Clifton Way Cherry Hinton, the phone number is 01223244277. Would you like to book a table? Or is there anything else I can help with? Sentence6: Please find me a place in the South that serves Chinese food Sentence7: I need to take a train that arrives by 15:00 on sunday. Sentence8: The Lucky Star is a chinese restaurant in the south in the cheap price range. Sentence9: Sounds good. What is the address and phone number? Sentence10: Yes, I would like the one in the cheap price range. Sentence11: Thank you for calling and have a nice day. Goodbye. Sentence12: you are welcome Sentence13: Great, and where are you traveling to? Sentence14: The train will leave at 12:21. Do you need any other information? Sentence15: I am leaving from Cambridge. Sentence16: Yes I can, how many tickets would you like me to book for you? Sentence17: I found 198 trains. where are you leaving from? Sentence18: No, thank you very much. Sentence19: I actually just need the departure time please. Sentence20: Okay. Well goodbye then. Question: Who has spoken the sentence 4? (A) User (B) System

Answer: (A) User