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

Sentence1: You're welcome and thanks for using our help desk. Goodbye. Sentence2: Thanks for the recommendation. That's all the help I need today. Sentence3: I'm looking for the entrance fee for Castle Galleries. Sentence4: Yes, i would like help locating an attraction. Sentence5: OK - what type of attraction are you looking for, and in what part of town? Sentence6: Their entrance fee is free. Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

Sentence1: Let's go with the cheap one. I'll need a table for 7 on Sunday at 12:15 please. Sentence2: Can you try on saturday, 7 people, at 12:15 Sentence3: you're in luck I have two options for you. One is in the cheaper price range, the other is listed as moderately priced. Do you have a preference? Sentence4: Unfortunately the booking was not successful. Sentence5: Yes, you're booked for Saturday with reference number V54FG5X2 . The table will be reserved for 15 minutes. May I help with anything else? Sentence6: Thank you, goodbye! Sentence7: No, that's all I need. Thanks for your help! Sentence8: Yes I would like to find Spanish food in the center of town. Question: Who has spoken the sentence 7? (A) User (B) System
Answer: (B) System

Sentence1: Yeah, maybe...but first, can you give me some ideas of places to go? I'm interested in some nightclubs in the centre. Sentence2: I would like to suggest the ballare. Do you need any information on it? Sentence3: I found two guest houses matching your request. Would you like to try the Aylesbray Lodge Gest House located at 5 Mowbray road? Sentence4: Absolutely! The entrance fee is 5 pounds and the phone number is 01223364222. Sentence5: There are quite a few options. Do you have a preferred price range and location? Sentence6: I would like to stay in a 4 star rated guesthouse. Sentence7: Yes both of those guesthouses have internet. Should I make a reservation? Sentence8: Do they have internet? Sentence9: Thanks! That's all I needed. Sentence10: You're most welcome. Enjoy! Sentence11: Yes! Can I have the phone number and entrance fee please? Sentence12: I'm not concerned with price, but we really would like to stay on the south end of the city if possible. Question: Who has spoken the sentence 4? (A) User (B) System

Answer: (A) User