You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: There are 3 hotels with a 2 star rating. Two in the North and one in the East. Would you like more information on one of them? Sentence2: You're very welcome. Will that be all? Sentence3: How many people will be traveling? Sentence4: The address at express by holiday inn cambridge is 15-17 norman way, coldhams business park. Their postcode is cb13lh. Anything else I can do for you? Sentence5: I would like the east please. Sentence6: i also need a taxi to commute between the two places Sentence7: It is. Would you like a room? Sentence8: I'm looking for some info on an attraction called king's college. Sentence9: I need to leave the attraction by 03:00. Sentence10: That will be all, thank you. Sentence11: Kings college is free and located in the centre of town. Sentence12: Is it in the expensive price range? Sentence13: I have the express by holiday inn cambridge. Would you like me to book that for you? Sentence14: Thank you for contacting us and have a nice day. Sentence15: I would like to find a place to stay with a 2 star rating and free parking. Sentence16: Excellent. Thank you for your assistance! Sentence17: OK, I have a blue audi coming to get you at King's college at 03:00 to take you back to the express by holiday inn cambridge. Is there anything else? Sentence18: Not at this time but what is their address and postcode? Question: Who has spoken the sentence 3? (A) User (B) System
A:
Answer: (B) System