Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: Yes, please. I need a reservation for Saturday, 4 nights and 2 people. Sentence2: Yes, thank you! Sentence3: Ya I am also looking for a hotel to stay. Would prefer one that doesn't have wifi if possible. Sentence4: Unfortunately, all the hotels in town have internet available. Is there a particular price range your looking at? Sentence5: There are five architecture attractions, all located in the center of town. There are four churches and one school. Sentence6: Awesome, tell me more about the church closest to me right now and get me their phone number please Sentence7: Booking was successful. Reference number is : 3U32C59A . Can I help with anything else? Sentence8: Did you need me to book a room at the Cambridge Belfry for you? Sentence9: I appreciate you finding wifi for me! Sentence10: Great. Thank you for calling and have a great day. Goodbye! Sentence11: All saints church is located at jesus lane and has free entrance. Their phone number is 01223452587. Can I be of any further assistance? Sentence12: How about the cambridge belfry located at back lane cambourne? Sentence13: Wifi will be fine then. Just something cheap and basic will be good. Do you know of such a place? Sentence14: Thank you for using our services. Have we met all of your needs today? Sentence15: I would like to find some place to go in town where I can look at architecture. Can you help? Sentence16: No that's great, thanks for your help. Question: Who has spoken the sentence 5? (A) User (B) System
A:
Answer: (B) System