Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: That is all I needed help with, thank you. Sentence2: Wandlebury Country Park is spectacular. The address is Wandlebury ring, gog magog hills, babraham postal code CB223ae. Phone number 0122324830. Sentence3: TR1681 will arrive at 20:08, would that work for you? Sentence4: Can you select your favorite of the two parks and provide me with their address and phone number please? Sentence5: Can you give me the address for the cinema? Sentence6: Yes, I'm looking for places to see in the south. Sentence7: Their phone number is 00872208000. Is there anything else I can assist you with? Sentence8: Yes, can you provide me with their phone number? Sentence9: Yes, that sounds good. Please book a ticket on TR1681 for 6 people for me. Sentence10: Yes, what's the entrance fee for the cinema? Sentence11: You're welcome. Enjoy your day. Sentence12: Sure thing! You are looking for Cineworld Cinema and the address is Cambridge Leisure Park, Clifton Way. Can I help you with anything more today? Sentence13: There is a cinema, two entertainment facilities, a museum, and a nightclub. Would you like more info about any of those? Sentence14: Okay, I can help you with that. Where will you be traveling? Sentence15: Unfortunately I don't have the entrance fee information. Can I help you with anything else? Sentence16: The booking was successful, your reference number is EAWIQ7HX . Is there anything else I can help you with? Sentence17: Do you know the entrance fees to any of the other places you mentioned? Sentence18: From London Kings Cross to Cambridge. Sentence19: I need a train leaving on a Sunday and arriving by 21:15. Sentence20: I have information on two parks and one museum, these have free admissions. I do not have entrance fee info on the others. Anything else? Question: Who has spoken the sentence 9? (A) User (B) System
A:
Answer: (B) System