You will be given a definition of a task first, then some input of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: i am looking for places to go in town. The attraction should be in the centre and should be in the type of theatre. Sentence2: Can you also find finches bed and breakfast? Sentence3: How about the Mumford Theatre located at Anglia Ruskin Enterprise, East Road, postcode cb11pt? I love that one. Sentence4: Yes I can. You will find it on the west side of town, at 144 thornton road. Can I book you or assist with anything else? Sentence5: That sounds perfect. How much is the entrance fee? Sentence6: No, that will be all. Thank you! Sentence7: I do not know the entrance fee. You can call 08451962320 for more information. Sentence8: Are you sure you do not want me to book you a room? Question: Who has spoken the sentence 5? (A) User (B) System
Output:
Answer: (B) System