Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Thanks. I would like some information on Rosa's bed and breakfast, please. Sentence2: Does such a place exist? If so, I would like some information on it, like the postcode. Sentence3: You sure may. The address is 1 Station Road, CB12JB. The phone number is 07782218745. Is there anything else I may help you with? Sentence4: Can I get the next train? Sentence5: Club Salsa sounds good. Can I get their phone number, address and postcode please? Sentence6: What information are you looking for? Sentence7: Enjoy your visit. Sentence8: No, but I am looking for a nightclub to go to. What ones are there? Sentence9: There are quite a few in the Centre. I suggest either Club Salsa or Soul Tree Nightclub. Sentence10: I'm afraid our train system seems to be down at the moment. Can I help you find a hotel until it is back up and running? Sentence11: That is everything, thank you very much. Sentence12: sure the address is 53 roseford road and the postcode is cb22ha. anything else? Question: Who has spoken the sentence 3? (A) User (B) System
Output:
Answer: (B) System