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

[EX Q]: Sentence1: Not right now, but could I please get the address for the hotel? Sentence2: Certainly. All Saints Church is in postcode cb58bs. Can I help you with something else today? Sentence3: The Cambridge Belfry is located at back lane, cambourne. The phone number is 01954714600 and postcode cb236bw. Is the anything else I can help with? Sentence4: Thank you. Have a nice day as well. Good bye. Sentence5: Yes please, we'll be needing somewhere to stay the night. What can you tell me about the Cambridge Belfry? I've heard it's pretty nice, is that true? Sentence6: It is four stars. What else would you like to know? Sentence7: Hello i'm looking for places to go in cambridge please. Sentence8: No that's it, thank you. Sentence9: Does it have free parking? Sentence10: The Cineworld Cinema is located south at Cambridge leisure park, clifton way. Is there a specific activity you had in mind? Sentence11: I hope you enjoy your stay. Have a nice day. Sentence12: The Cambridge Belfry does have free parking. Would you like me to book it for you? Sentence13: I need a place in the centre. Sentence14: All Saints Church is in the centre area. The entrance fee is free. Would you like to book that? Sentence15: Yes, can I get the postcode. Sentence16: Have a nice day! Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: 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
[EX A]: Answer: (B) System

[EX Q]: Sentence1: I booked it for you. The reference number is TCBE0PUQ . Sentence2: Booked! Your reference number is: 4T6UFRYC . Can I help with anything else? Sentence3: Thank you, goodbye Sentence4: Enjoy the rest of your day! Sentence5: it is a moderate restaurant in the west. can i book for you? Sentence6: Yeah, what can you tell me about a restaurant called Meghna? Sentence7: I am looking for a train from Stevanage to Cambridge. Sentence8: Eww, Friday won't really work for me. Do you have anything on Thursday? Sentence9: Yes, please. I'd like a reservation for 4 on Thursday at 20:30. Sentence10: I have several options. They all leave on Friday; do you have a preferred departure time? Sentence11: There are 10 trains traveling on Thursday. The first train leaves at 05:54. Do you want to book this train or do you want a later departure time? Sentence12: That train sounds good, can you book it for 4 people? Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]:
Answer: (B) System