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

Ex Input:
Sentence1: The Warkworth House is a guesthouse in the East, it's moderately priced and rated 4 stars. I would love to assist you in booking a room if you would like? Sentence2: There are 5 parks in town. Did you have a certain area you prefer? Sentence3: It's actually not a museum, but considered an architecture attraction. Were you interested in a specific type of attraction? Sentence4: Cambridge university botanic gardens is a beautiful park. Its located at bateman street, costs 4 pounds to get in. Phone 01223336265, cb21jf. Will you need transportation? A train, taxi or bus? Sentence5: have a good day Sentence6: No, Is that a museum or a church. Sentence7: Oh, I suggest my favorite! It's Holy Trinity Church, beautiful architecture, and it's located on Market Street. It's free. Would you like their phone number? Sentence8: I have you at the Warkworth house. Would you like to change the reservations? Sentence9: i am looking for somewhere to go in the centre of Cambridge Sentence10: I think we would like it to be in the centre of town please. Sentence11: Yes your reference number is 53LJQ4H6 . Sentence12: No. That's perfect! Thanks for your help. Good bye. Sentence13: Yes, please. Can you reserve a room for Monday for 5 people, 3 nights? Sentence14: no. also find me a hotel by the name warkworth house Sentence15: Actually, I will need to book lodgings as well. Sentence16: Thanks! Can you suggest to me something to visit that isn't a church or architecture? Maybe a museum or a park? Question: Who has spoken the sentence 15? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: Yes, and their phone number is 01223363682. Is there anything else I can help you with? Sentence2: Do they have free parking, and what is their phone number? Sentence3: Yes I can confirm that Warkworth house has internet, can I help with anything else? Sentence4: Can you tell me if warkworth house hotel has wifi. Sentence5: Sure. Glad to help. Sentence6: No, that's all I need, thank you. Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: No thank you that will be all Sentence2: How about acorn guest house? Sentence3: Ok great, is there anything else I can help you with today? Sentence4: I'm sorry. I'm not finding any concert halls in the east. Would you like to try a different area or attraction type? Sentence5: What is the postcode to that place? Sentence6: You're welcome, Have a great day! Sentence7: Just pick one. Sentence8: And where would you like this guesthouse to be? Sentence9: North part of town and moderate price with wifi Sentence10: No, please get me their address and phone number. Sentence11: They are on 154 chesterton road, postal is cb41da, phone number is 01223353888, can I help with anything else? Sentence12: I was wondering whether there are any concerthalls in the east that I could check out. Sentence13: The postcode for Cambridge artworks is cb13ef. Anything else I can do for you? Sentence14: Okay! How about Cambridge Artworks? Admission is free! Sentence15: I am planning my trip and would like to find a guesthouse to stay at. Sentence16: How about a museum? Sentence17: we have museums in the east quite a few actually how can I help you? Sentence18: Do they have free parking? Sentence19: Yes they do have free parking. Do you need me to book you a room? Sentence20: Sure, I can try that. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User