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

Sentence1: No thank you. Im finished. Sentence2: Allenbell is my favorite. It has four stars. The phone number is 01223210353. Shall I book that for you? Sentence3: Is there anything else I can help you with? Sentence4: I found 10 places, do you have a hotel style preference of gueshouse or hotel, or an area you prefer? Sentence5: You're welcome. How many people are in your party, and when will you arrive? Also, how long would you like to stay? Sentence6: I'm looking for a cheap place to stay that does not need free parking. Sentence7: It sounds fine. Do any of them include free wifi? Sentence8: There are three cheap guesthouses in the east area, however, they all have parking. Will this be okay, or would you like to look at a different area or price? Sentence9: Okay. Have a good day. Sentence10: That'd be great. Thank you. Sentence11: All of them include free wifi. Sentence12: What's the phone number and star rating of your favorite one? Sentence13: I will book on my own, thanks. Sentence14: I don't have a preference for the type but I would like a place in the east. Question: Who has spoken the sentence 7? (A) User (B) System
Answer: (B) System

Sentence1: I am sorry but you will have to get ticket there and here is the address 251a chesterton road. Sentence2: Do you want me to make a booking? Sentence3: I'm seeking an attraction! A boat one will be nice. Sentence4: Yes please! Thank you so much! Sentence5: Great! I have four for you. Two are in the centre. Any location you'd like in particular? Sentence6: Sure, I can get tickets for the cambridge punter in the city centre. If that sounds okay, what day and time would you like? Sentence7: I am also looking for the Oak Bistro, a place to eat. Sentence8: No, I'd like the name of one in the centre please. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: i got five. any specific area you prefer? Sentence2: Sure thing, I will work on this and be back with you shortly. Sentence3: Are there any multiple sports arenas? Sentence4: I have booked your reservation. The reference number is UJEGRKNM . Is there anything else I can help you with? Sentence5: Unfortunately, I can't book anything without some more information from you. I would need to know the day and time you'd like to dine, as well as the number of people. Sentence6: When you're done working on it please give me a reference number for my records Sentence7: Not in the south. I have them in other areas of the city. Would you be interested in another area or another type of attraction in the south? Sentence8: Zizzi Cambridge sounds good, can you book that please? Sentence9: Centre of town please. I need to book a table for 7 people at 17:45 on Thuesday. Sentence10: Okay, that narrows your choices to three: Pizza Hut City Center, Ask, and Zizzi Cambridge. Any preference? Sentence11: I need a place to go in the south. Sentence12: I need a table for 7 people at 17:45 on Thursday. Sentence13: Well, that is disappointing but maybe we could try italian. Sentence14: I have not located any restaurants that serve modern global food, would you like me to locate a restaurant that serves a different food type? Sentence15: The south is lively with cinema, entertainments, a museum, nightclub, parks and theatre. What appeals to you? Sentence16: Hello! I'm looking for a cheap restaurant that serves modern global food. Question: Who has spoken the sentence 9? (A) User (B) System
Answer: (B) System