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

Sentence1: I would like to leave the hotel by 02:45. Sentence2: is one of them free? Sentence3: what time do you want to leave? Sentence4: Neither prices are listed and can vary by season and day, you would have to call them, jesus green can be reached at 01223302579, kings hedges at 01223353248, any preference? Sentence5: I am the floor manager, I apologize, we are training a new crew. I have your taxi booked, look for a black honda, they can be reached at 07639528951. Sentence6: Thank you for using our service. Sentence7: headed to what place? Sentence8: When will you start your stay and for how long? Sentence9: Ashley hotel is nice. It's a moderately priced hotel in the north. The postcode is cb41er. Can I book it for you? Sentence10: where are you leaving from? Sentence11: No particular price range but I would like for it to have free parking internet with a 2 stars. Sentence12: This conversation has gotten a little confused, hasn't it? I'd like to go to Kings Hedges Learner pool, please. Sentence13: i dont have a specific time to arrive Sentence14: It is moderately priced. Sentence15: I am unsure but it does have free wifi and parking. Would you like me to book a reservation for you? Sentence16: Yes, I do need a reservation. Sentence17: Not yet. Do you have a price range for that hotel? Sentence18: OK, what area or price range do you have in mind? Sentence19: North work for me, Ill go with what you pick, just need the price range, hotel type and postal code so I can plan ahead. Sentence20: Does it have a pool? Sentence21: There are two, jesus green outdoor pool and kings hedges learner pool. Sentence22: Thank you that was all I needed goodbye. Sentence23: You have a choice of three, two in the North and one in the west. Sentence24: i need a place to stay Sentence25: i will be leaving from the hotel Sentence26: YES , i could want to book a taxi to commute between the two places. Sentence27: at what time do want to arrive Sentence28: You know what? I think I'm going to hold off on the hotel reservation right now. Is there a swimiming pool near there? Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System