You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: Thanks. Is there a british restaurant near the church I can eat at? Sentence2: Oh churches! Sometimes they are really beautiful inside. That sounds fun. Do you know of any that might be good? Sentence3: there are lots of museums and churches to visit Sentence4: Okay! Would you like for me to make you a reservation? Sentence5: Yes. Please make a booking for 3 people at 11:45 for Thursday. Sentence6: How about holy trinity church? The entrance fee is free. Sentence7: There are 7 restaurants, would you prefer a moderate or expensive price range? Sentence8: I would like it to be moderate. Sentence9: I am looking for somewhere to go in the centere of town. Sentence10: That sounds perfect. What is the postcode? Sentence11: I have your reservations set for 11:45 Thursday for a party of 3 at The Copper Kettle. Your reference number is YEXS7GMQ . Is there anything else I can help with? Sentence12: That sounds great thanks so much. Sentence13: May I suggest The Copper Kettle? It's very popular. Sentence14: it is a type of a collage. postcode is cb21tq Sentence15: No, that will be all. Thanks for your help! Sentence16: You are most welcome! Enjoy your visit! Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User