Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Ok, their address is Wheeler Street. Sentence2: Jinling noodle bar is in the centre area serving Chinese in the moderate price range. Would you like to reserve a table? Sentence3: Enjoy your dinner. Sentence4: I made a reservation for your party of 3 at the Ugly duckling for Saturday at 15:15. Your reference is PEZ07FH7 . Is there anything else I can help you with? Sentence5: There are 4 options, but i personally recommend the cambridge corn exchange, would you like more info? Sentence6: I want something expensive. Sentence7: I am also looking for a theater. Sentence8: What area of town would you like the restaurant to be in? Sentence9: I do not know you can call 01223357851 and find out. I suspect it varies based on day and time so calling would be best. Sentence10: That's great I will call them, thank you. Sentence11: No thanks. You covered everything. Have a good night. Bye. Sentence12: Yes more info and adress and is there any fee's ? Sentence13: Could you make a reservation for 3 people at 15:15 on Saturday and provide the reference number? Also looking for a theatre in the same area. Sentence14: And i there an entrance fee? Sentence15: No problem, are you all set or is there anything else that hasn't been covered yet? Sentence16: I'd like to be in the centre of town. Sentence17: I'm looking for a Chinese restaurant please. Or one that serves Chinese food. Sentence18: I think you would enjoy ugly duckling. Want more information? Question: Who has spoken the sentence 1? (A) User (B) System
Output:
Answer: (B) System