You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: Yes! The address is gwydir street, no. 5 dale's brewery; the entrance fee is free; and the phone number is 01223311687. Can I help with anything else today? Sentence2: Can you tell me the phone number, address and price range for El Shaddai? Sentence3: I'm going to need a place to stay that has free wifi and in a guesthouse. The hotel rating a zero star. Sentence4: I'm looking for something in the centre of town, maybe an art museum? Sentence5: Have a great day! Sentence6: That sounds great. Can I please have the address, entrance fee, and phone number? Sentence7: There are a couple locations that fit that criteria. Could I recommend William's Art and Antiques museum? Sentence8: Hi, I'm traveling to Cambridge and would like to find some places to go. Can you help me? Sentence9: Yes I can! There are a total of 79 different attractions in Cambridge that you can visit. Is there a particular type of attraction you would like to see? Sentence10: No, that's it. Thanks! Sentence11: El Shaddai fits your preferences and is located in the centre of town. Would you like me to make a reservation? Sentence12: The price range is cheap, you would need to call for more specific information. Their phone number is 01223327978, and they are located at 41 Warkworth Street. Anything else? Question: Who has spoken the sentence 1? (A) User (B) System
A: 
Answer: (B) System