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

[EX Q]: Sentence1: I was just involved in a car accident. Sentence2: You should contact this number: 01223358966. Sentence3: The address is Parkside, Cambridge, postcode CB11JG. Sentence4: Yes, I have a passenger that is hurt. How can I get to the hospital to make sure they are okay? Sentence5: You are welcome. Have a great day. Sentence6: I'm very sorry to hear that! Have you called the police yet? If not here is their number 01223358966. Is there anything else I can help with? Sentence7: Thanks, what's the address and postcode to the police department? Sentence8: Thank you for the info. That'll be all for now. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Would you like to book a room at the acorn guest house? It is in the moderate price range like the Hamilton Lodge. Sentence2: Nope. I think that is all I need. Thanks for your help! Sentence3: Yes that will be fine. Sentence4: Your booking was successful. Your reference number is 1WRSIG9U . Is there anything else I can help you with? Sentence5: Happy to help. Have a great day! Good-Bye! Sentence6: I am sorry the booking was unsuccessful,can I help you find another place in the same area? Sentence7: Yes please. I'd like a room for 5 people on Monday for 5 nights. Sentence8: Yes, this guesthouse is open. Do you need help with booking? Sentence9: How about another hotel in the same price range? Sentence10: Howdy! Is the Hamilton Lodge still open? Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: yes reserve a table for 1 at 19:30 on sunday please Sentence2: do you have information about attractions in the west? Sentence3: What attraction type is that? I am also interested in finding a restaurant in the west as well. Sentence4: I have many in that price range. Would you like me to choose for you? Sentence5: I recommend queens' college that is located in the West. Their address is silver street. Sentence6: I have 13 entries for attractions in the west. Do you have a type of attraction you're interested in? Sentence7: Thank you for using our service today. Sentence8: I don't care as long as it is in the west. Sentence9: I booked you at the Tandoori Palace and your reference is LP0O0N8L . Sentence10: i would love indian food, preferable in the expensive price range. Sentence11: That's everything I need. Thank you for helping me. Sentence12: It is a college, the admission fee is 2.50 pounds. What type of cuisine would you like to dine on in the west? Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]:
Answer: (B) System