You will be given a definition of a task first, then some input of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

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
Output:
Answer: (A) User