Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Problem:Sentence1: Um, I think I'll just take the postcode and the name for now thanks. Sentence2: I have an Italian place and a Vietnamese, which would you prefer? Sentence3: Okay would you like me to make a reservation? Sentence4: Thank you for choosing Cambridge TownInfo centre. Have a wonderful day! Sentence5: I'm looking for an inexpensive restaurant in the west section of Cambridge. Sentence6: Ok, maybe we can try the Vietnamese one you mentioned. Sentence7: Nope, that is all I needed. Thank you so much! Sentence8: The Vietnamese restaurant is called Thanh Binh and is located in the CB30AF postcode. Is there anything else I can do for you? Sentence9: I would actually prefer some cheap Lebanese food if possible? Sentence10: I am sorry I have no results for restaurants serving lebanese food in the west. Would you like to find another type of cuisine? Question: Who has spoken the sentence 4? (A) User (B) System
Solution:
Answer: (A) User