Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: I do apologize there are no restaurants serving barbecue. Is there something else you might be interested in instead? Sentence2: You're welcome! Enjoy your stay. Sentence3: Are there any places that serve gastropub food? Sentence4: I am looking for an attraction in the centre of Cambridge. Sentence5: I was able to get a blue lexus and their number is 07087322851 Sentence6: I would also like to book a taxi that arrives by 12:45 to the restaurant. I would also like its contact number and car type. Sentence7: Sure! For 5 people at 13:45 on Sunday please. Thank you! Sentence8: There is the Whipple Museum of the History of Science located in the town centre, on free school lane. Is there any thing else I can help you with? Sentence9: The museum's post code is cb23rh. Sadly, there are no restaurants serving barbeque. Is there something else you might be interested in instead? Sentence10: There are several attractions in the town centre. Are you looking for a particular type? Sentence11: Alright, you're booked for 12:45. Your reference number is DXMY5V92 . Sentence12: I am also interested in a moderately priced place I can get barbeque. Sentence13: Yes, The Cow Pizza Kitchen and Bar is a moderately priced gastropub in the center of town. Would you like a table there? Sentence14: Perfect. Thank you very much for your help. Sentence15: They are not available for that time, is there another day and or time that you would like me to check? Sentence16: Sure, would 12:45 be available? Sentence17: Yes, please find any museums in the town centre. Sentence18: I need the postcode. Also, is there any place in town serving barbeque? Question: Who has spoken the sentence 6? (A) User (B) System
Output:
Answer: (A) User