Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: there are 11 all with free entrance. Would you like me to recommend one? Sentence2: As previously mentioned, they both have internet available. I don't have specifications about the internet service however. Would you like to book one of these? Sentence3: I can, we have 9 hotels, do you have anything else to narrow it down? Sentence4: Your white ford taxi booking was successful. Its contact number is 07580691974. Sentence5: I have 2 available hotels. One is the Gonville Hotel located on Gonville Place. The other is University Arms Hotel on Regent Street. Which one would you like to book? Sentence6: Do you have there phone number? Sentence7: Your booking was successful and the reference number is ELYPAXQZ . Sentence8: I want to arrive at the Castle Galleries by 11:15. Sentence9: Yes, please book for two nights beginning on Sunday for one person. Sentence10: Yes, please. Can I get the address and phone number for the one you reccommend? Sentence11: Ok, thank you for the help. Sentence12: I'm looking for a hotel, can you help? Sentence13: Can you book the one without wifi? Sentence14: Their phone is 01223307402. Is there anything else I can help you with today? Sentence15: What time do you need the taxi, and which is the destination site? Sentence16: Was there anything else you needed today? Sentence17: Yes, I also need a taxi going between the two places. Sentence18: they both have internet, for what days and how many people should I book? Sentence19: Do either of them offer free wifi? Sentence20: castle galleries is a nice place, their address is unit su43 grande arcade st andrews st and their postcode is cb23bj, anything else today? Sentence21: Thank you. I'm also looking for a museum to go to in the same area. Sentence22: It should be in the centre and be on the expensive side. Question: Who has spoken the sentence 13? (A) User (B) System
Output:
Answer: (B) System