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

Sentence1: How about the Gonville Hotel located in the centre area of town? Sentence2: Between $100-$300 per night. Sentence3: I have several available. What is your price range? Sentence4: Ok, I have several hotels. Any particular location? Sentence5: Location doesn't really matter as long as there's free parking available. Sentence6: What is their postcode? Sentence7: I need a place to stay with free wifi. Sentence8: Their postcode is cb11Iy, address gonville place, phone 0122336661 they have wifi and free parking too. Would you like me to book this for you? Question: Who has spoken the sentence 4? (A) User (B) System
Answer: (A) User

Sentence1: Eraina is in the centre of town located at Free School Lane City Centre. Their number is 01223 368786. Is there anything else I can do for you? Sentence2: Eraina in the centre is an expensive european restaurant. Would you like further information? Sentence3: what is the price range ? Sentence4: European food? Sentence5: Please recommend me an expensive restaurant that serves afghan food. Sentence6: They are in the expensive price range. Sentence7: What is the address, phone number, and area? Sentence8: I don't care where it is. Sentence9: Thank you. Good bye. Sentence10: I'm not finding any restaurants that match your request. Would you like to try a different price range or food type? Sentence11: There are four restaurants that serve European food. What part of town would you like? Sentence12: You are welcome, enjoy your stay. Good bye. Sentence13: That'll do. Thank you. Good bye. Sentence14: Thank you, and have a great day! Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

Sentence1: Of course. Da vinci pizzeria is at 20 Milton Road Chesterton, and the number is 01223 351707. Sentence2: Thank you for your help. Sentence3: It really doesn't matter, but I suppose the north. Can I get the address and phone number please? Sentence4: Yes, there are five options for cheap Italian food. Three are located in the centre of town, one in the north, and one in the west part of town. Do you have a preference on area? Sentence5: I am looking for a cheap restaurant that serves Scandinavian food Sentence6: Are there any cheap restaurants that serve Italian food? Sentence7: No results for your query have been found. Would you like to try again? Sentence8: You're welcome, enjoy your food. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User