Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: The address is saint andrew's street. Sentence2: Efes restaurant is in town centre, serving turkish food and is moderately priced. The address for it is King Street City Centre. Would you like to reserve a table? Sentence3: And a great day to you as well! Sentence4: Great! I booked you in at 18:45 on a Sunday. Your reference number is RZD2U6C2 . Sentence5: We have many colleges, some with an entrance free and some without. Do you have a preferred location or cost concern? Sentence6: I will take one that you recommend. I will need the postcode and address. Sentence7: I am looking for a restaurant called Efes Restaurant. Sentence8: Wonderful. Thank you so much for this! Have a great day. Sentence9: How about churchill college? Address is storey's way, postcode cb30ds. Anything else I can do for you? Sentence10: Can I get the postcode as well for it? Sentence11: The postcode is cb30ds. Sentence12: Thanks. I'd also like suggestions on attractions in town under the college category. Sentence13: Yes please, just for 1 on Sunday at 18:45. I will need a reference number as well. Sentence14: What's the address for Churchill College? Question: Who has spoken the sentence 7? (A) User (B) System
A:
Answer: (B) System