Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: Sure. Were you looking for a specific price range? Sentence2: it offers British food and it is expensive Sentence3: I am looking for fitzbillies in Cambridge. Sentence4: Awesome. What price range is that in? Sentence5: Thanks, I'm also looking for a place to stay in the north area with wifi. Sentence6: There is a fitzbillies restaurant at this address: 51 Trumpington Street City Centre. Sentence7: There are two guesthouses,in the north, in the cheap price range. Both have wifi and parking. One is 4 stars. The other is 0 stars. Sentence8: The restaurant is located in the centre, would you like me to book you a table? Sentence9: Don't book it but can you send me their full contact info? Thanks. Sentence10: What area is that in? Sentence11: Yes cheap please. Sentence12: Nope thats everything thanks Sentence13: Here is the phone number 01223352500. Sentence14: Thank you enjoy the stay in cambridge. Sentence15: Okay. Your booking at the Worth House was successful. The reference number is 6Z40CANO . Can I help with anything else today? Sentence16: Book 4 star one. For 5 people, 3 nights, Tuesday. Question: Who has spoken the sentence 1? (A) User (B) System
A:
Answer: (B) System