Given the task definition and input, reply with output. You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: Sure, I would recommend Kohinoor Indian restaurant in the Centre. Would you like a reservation? Sentence2: Can you give me the phone number also? Sentence3: Churchill College is on storey's way. Sentence4: You're welcome. Enjoy your visit to Cambridge! Sentence5: Can you tell me whether there are colleges open to sightseers in the city center? Sentence6: I'm also looking for a cheap Indian restaurant, can you recommend one for me? Sentence7: Sounds good. Can I get their phone number and address? Sentence8: Churchill College can be reached at 01223336233. Is there anything else I can help with today? Sentence9: Their address is 74 Mill Road City Centre and the phone number is 01223323639. Can I help you with anything else? Sentence10: No, you've taken care of everything for me today! Thank you! Sentence11: There are several places, churchill college is available. Sentence12: What is the address? Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User