Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: I actually need it for 3 nights Sentence2: Thank you so much that was all I needed. Sentence3: There are 44 in the centre of town. Could we narrow it down to architecture, college, museum, or theater? Sentence4: Sure. Do you have any other criteria? Sentence5: We have alexander bed and breakfast and el shaddai, both are guesthouses any preference? Sentence6: Thanks! I'm also looking for somewhere to stay while I'm in town. Sentence7: Definitely. Did you just want that for one day? Sentence8: What is one of your favorites? I would need the phone number and type of attraction. Sentence9: Your reservation for 2 people at the alexander bed and breakfast this saturday for 4 nights was successful. Your Reference number is : Q0IABNP7 . Sentence10: Great! Thank you for calling the Cambridge TownInfo center. Have a great trip! Sentence11: I actually prefer the cambridge university botanic gardens. They're classed as a park, and their number is 01223336265. Sentence12: I am visiting the centre area and need to find an attraction to visit. Sentence13: Yes, it needs to be in the same area as the attraction, cheap price range, free wifi but doesnt need to have free parking. Do you have anything like that? Sentence14: Alexander Bed and Breakfast sounds nice. Can you make a reservation for two for Saturday? Question: Who has spoken the sentence 5? (A) User (B) System
A:
Answer: (B) System