Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: Do they have free parking? Sentence2: We have 4 matches, do you have a price range in mind? Sentence3: I need a hotel in the west part of cambridge. I don't care if it has internet. Sentence4: The address for Queens' College is Silver Street. Can I help you with anything else today? Sentence5: That is no problem, the cambridge belfry is a better price and should meet your needs, would you like more information? Sentence6: Yes please thank you Sentence7: i suggest the queens' college. can i give you the address? Sentence8: There is the Huntingdon Marriott hotel would you like me to book it for you? Sentence9: No, just the phone number and address. I am also looking for places to go in the same area as the hotel. Sentence10: I have no preference, just something in the same area as the hotel. Sentence11: The phone number is 01954714600, address 01954714600. What type of attraction would you like to go to? Sentence12: I need the postcode as well. Sentence13: Thank you for choosing Cambridge TownInfo Centre to assist you. Have a good day! Sentence14: Yes expensive please. Just book me a room and send me the reference number. Sentence15: Their postcode is cb39et. Is there anything else I can assist you with? Sentence16: Yes, the bell fry has free parking. Would you like me to book a room for you? Sentence17: Nope. That was all I needed. Thank you. Sentence18: No. Actually sorry. It should be a cheap hotel in the west. Question: Who has spoken the sentence 11? (A) User (B) System
A:
Answer: (B) System