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

Q: Sentence1: No specific area. Sentence2: Thank you, goodbye. Sentence3: I have found no restaurants serving Christmas food in the expensive price range. Would you like a different type of food? Sentence4: phone number and address of Cambridge Lodge Restaurant please Sentence5: is there any area you prefer! Sentence6: I want to find an expensive restaurant serving christmas food. Sentence7: Thank you for using the Cambridge restaurant system. Goodbye. Sentence8: Are there European types of restaurants? Sentence9: Cambridge Lodge Restaurant is in the west part of town, at Cambridge Lodge Hotel 139 Huntingdon Road City Centre. Their phone number is 01223 355166. Sentence10: Yes, there are four: cambridge lodge restaurant, eraina, and michaelhouse cafe serve european food, with darrys cookhouse and wine shop serving modern european food Question: Who has spoken the sentence 3? (A) User (B) System

A: Answer: (B) System
****
Q: Sentence1: No that's all. Thanks. Bye! Sentence2: Yes, that's right. Which of the 12 options would you recommend? Sentence3: Yes, would you try 2 nights instead, please? Sentence4: That's great. Please make a reservation for 1 on Monday. I'd like to stay 3 nights. Sentence5: Your booking was unsuccessful. Would you like another day or a shorter stay. Sentence6: Are they expensive? I would like something nice. And do they have free parking? Sentence7: Please check for something expensive first. If you don't see one, then we can come back to that. Sentence8: Booking was successful. Reference number is : JAKCI7JO . Is there anything else we can help you with today? Sentence9: How about Archway House? It's at 52 Gilbert Road cb43pe, and the phone number is 01223575314. Would that work for you? Sentence10: Yeah, that's fine. Oh, and I need free parking! Sentence11: There is the Acorn Guesthouse that is located in the north side of town. Would you like me to make a booking? Sentence12: I hope you have a great rest of the day. Sentence13: Can you tell me about a nice guest house in your city? I don't care how much it costs. Sentence14: They're a moderate guesthouse with free wifi and parking. Would you like to book a room? Sentence15: So to clarify, you need a guesthouse with free parking, and a moderate price range is acceptable? If so, I have 12 different options for you. Sentence16: It looks like all of the places in the expensive price range are hotels rather than guesthouses. Would you like to consider a different price range? Question: Who has spoken the sentence 11? (A) User (B) System

A: Answer: (B) System
****
Q: Sentence1: i also need a place to dine Sentence2: sure, i have 5 options for you Sentence3: Yes. Tuesday, 13:00, for 5 people. Sentence4: Okay, you're all set. I have Curry Garden booked for Tuesday, for 5 people, at 13:00. Your reference number is: HW1ZTXBE . Is there anything else I can do? Sentence5: I would like it to be in the expensive price range. Sentence6: What sort of cuisine are you in the mood for? Sentence7: Indian food, in the same area as Clare Hall. Sentence8: We have quite a few indian restaurants in the centre may I book one for you? Sentence9: have a good dinner! Sentence10: choose for me one that is good and get me the entrance fee and address. Sentence11: I recommend Clare Hall. It's free to get in. The address is Herschel Road. Would you like any more information on it? Sentence12: That is all I need. Cheers. Sentence13: what price range do you want? Sentence14: I would to visit a college in the west. Question: Who has spoken the sentence 10? (A) User (B) System

A:
Answer: (A) User
****