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

[Q]: Sentence1: Are there any with a 5 star rating? Sentence2: I'm looking for a place to stay with free wifi. Can you help me find something moderately priced? Sentence3: You are booked at the acorn guest house. Reference number is ROCCFCM6 . Sentence4: Thank you so much, that is all I need. Sentence5: Unfortunately, none of them have a 5 star rating. Sentence6: Are there any with a 4 star rating? Sentence7: We have plenty of moderately priced options with free WiFi. Do you have any additional preferences? Sentence8: Oh yes, several. Are there any addition preferences on those? Sentence9: Great, enjoy your stay. Bye. Sentence10: Nope, any 4-star moderate place with wifi will be fine. Could you book a room starting Saturday for 3 nights, 5 people? Question: Who has spoken the sentence 6? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: I have 23 places. What area would you prefer to be in? Sentence2: There is Cafe Jello Gallery in the west, Cambridge Artworks in the east and Broughton House Gallery in the centre. Does any of those sound appealing? Sentence3: Just the price range and postal code please. Sentence4: Cafe jello gallery postcode is cb30af and the entrance is free, is there anything else I can do for you? Sentence5: Here is the address 529 Newmarket Road Fen Ditton. Sentence6: Do you have an attraction type preference? Sentence7: You're welcome! Enjoy your visit! Sentence8: that is it. thank you for helping me Sentence9: Yes, I would like to see a museum. Can you tell me the postcode and entrance fee for it? Sentence10: I have no particular area preference. Can you list a few for me to select from? Sentence11: Yes could I have their postcode and entrance fee? Sentence12: Can you give me more information about Yu Garden. Sentence13: Of course! It is a chinese cuisine restaurant located in the east. Anything else you would like to know? Sentence14: I am traveling to Cambridge and excited about seeing local tourist attractions, can you help? Sentence15: I am also looking for the restaurant Yu Garden. Sentence16: Their price range is expensive and the postcode is cb58pa. Are you sure that is all you needed? Question: Who has spoken the sentence 13? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: the reference number is 9g1eycif . Sentence2: The abbey pool and astroturf pitch is located at pool way, whitehill road, off newmarket road. Do you need anything else? Sentence3: I'm looking for an attraction in the category of swimming pool. Sentence4: That is all I need. Thank you for your help! Sentence5: Yes, west, east, south and north. Sentence6: Could you book rooms for 7 people for 4 nights starting from Saturday? Sentence7: I will need the reference number. Sentence8: Yes, I'm also looking for a guesthouse in a moderate price range. Sentence9: I've got four pools for you. What area are you in? Sentence10: The area doesn't matter, but it should have 4 stars please. Sentence11: What area would you like to stay in? Sentence12: I'm pretty open. Can you list the areas? I'll choose one of the four. Sentence13: The acorn guest house is awesome. I would suggest that place. Sentence14: Please tell me about the locations of some pools in the south. Sentence15: One in the east is fine. I need the address please? Sentence16: I am sorry but there are none in the south. I have one east, two north and one centre. Sentence17: No problem. Enjoy your stay. Sentence18: I have you booked for 4 days. What else can I do for you? Question: Who has spoken the sentence 3? (A) User (B) System
[A]:
Answer: (B) System