Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Problem:Sentence1: Unfortunately, we do not have any Indonesian restaurants. Would you like Thai food? Sentence2: Yes, could you give me more info on the Vietnamese restaurant? Sentence3: That is all, thank you for your help. Sentence4: You're welcome. Let us know if we can help you. Sentence5: Their postcode is cb30af. Would you like to book a table? Sentence6: Their address is 17 Magdalene Street City Centre. Sentence7: There is an Italian restaurant, La Margherita and a Vietnamese restaurant called Thanh Binh. Would one of those work? Sentence8: could you give me their postcode? Sentence9: No, that will be fine. I am needing help finding a hotel in a moderate price range with 4 stars and free parking. Can you help me with that? Sentence10: Area doesn't actually matter. But if there are no results for a moderate 4 star type-hotel with parking, then try to find a cheap one instead Sentence11: Great can you book that for 8 people for 3 nights starting thursday? Sentence12: I have one result for you in the cheap pricerange. It is the cambridge belfry. Anything else today? Sentence13: Here is your reference number, SM7PEYSV . The booking is all set for you. Is there anything else I can do for you? Sentence14: how about the west ? Sentence15: What kind of restaurants are in the west that's cheap? Sentence16: I'd be happy to help with your request, to help narrow the results down, what area are you looking to stay in? Sentence17: Sorry, there are no results. Maybe a different star rating or area would work? Sentence18: I'd like to find a cheap Indonesian restaurant. Can you help? Question: Who has spoken the sentence 13? (A) User (B) System
Solution:
Answer: (B) System