user: 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'm sorry, they don't have an opening at 12:00. Would you like to try a different time or day? Sentence2: Hi. I am trying to find some information on a restaurant called India House. Have you heard of it? Sentence3: I was able to book your table on Sunday at 11:00 for 1. The reference number is FRGW4OO2 . Sentence4: I'm so happy we could help you out today. Enjoy your meal in Cambridge! Sentence5: Great can you book a table for one person at 12:00 on sunday? Sentence6: India House serves Indian food in the west of town and is expensive. Their phone number is 0122346166. Can I help with anything else? Sentence7: Thanks. That covers it then! Sentence8: Sure, let's try for 11:00, same day. Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: There is a moderate priced Indian Restaurant located on the east side, would you like that address? Sentence2: That's it, thanks. Good bye. Sentence3: Thank you for calling. Goodbye. Sentence4: Yes please, could I have the address, phone number, and postcode of the venue? Sentence5: located in the east side Sentence6: Hi, I want a moderately priced restaurant. Sentence7: curry prince's address is 451 Newmarket Road Fen Ditton, their postcode is C.B 5, 8 J.J. Their phone number is 01223 566388 Sentence8: There are several restaurants in the moderate price range. Do you have a preference for the type of food or part of town? Sentence9: Thank you. Sentence10: You're welcome. Anything else I can help you find? Question: Who has spoken the sentence 6? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Can you tell me if they have free internet and the star rating for each? Sentence2: Ah, here it is. It's an expensive gastropub restaurant in the east. Would you like to make a reservation? Sentence3: I was able to book that, reference number is GTZ8UVJO . Sentence4: thanks. i need to get going so, its time to say goodbye. have a good one. Sentence5: I also need a restaurant. Sentence6: I'm sorry but it must have closed as I am not finding any information on it. Can we look up another venue for you? Sentence7: Well I would like a guesthouse. Does that limit what area I can book in? Sentence8: There are moderately-priced guesthouses in 4 areas. Most have free parking, two don't, but if parking doesn't matter, any of them should do; Archway House in the north is very nice. Sentence9: There are nine restaurants in the north area. Do you have a preference of food type? Sentence10: I've booked a black ford with a contact no. 07568876193. It should arrive by 19:00 15 minutes before the booked time. Sentence11: Can you help me find a place to stay in the moderate price range. It doesn't need parking. Sentence12: Thanks! I also need a taxi to take me from Archway House to the restaurant for that reservation, please. Sentence13: I have 4 but need to know what area you would like to stay in? Sentence14: That's unfortunate. Are you certain you can't find it? I was sure it's still operating. Sentence15: Actually, I have a certain restaurant in mind. It's called Royal Standard. Can you tell me about it? Sentence16: The east and the north. Sentence17: Can I look up anything else for you today? Sentence18: Yes. I need a table for 4 people at 19:15 on Sunday. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]:

assistant: Answer: (A) User