Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: How about italian food? Sentence2: I would prefer welsh food, please! Sentence3: I have found many restaurants with the criteria you gave me offering different kinds of food. Do you have a preference for type of food? Sentence4: That was all I needed for now. Thanks Sentence5: Thank you for using our services. Sentence6: That is everything, still ironing out details, so I will call them later, thanks for your help. Sentence7: You are quite welcome. Do you need any further assistance? Sentence8: Sure. What is their phone number and address there Sentence9: I don't have any Welsh restaurants that meet your criteria. Would British or European be ok, or would you like a more exotic cuisine instead? Sentence10: i am looking for a restuarant in the expensive price range and should be in the centre Sentence11: How about cafe uno? Sentence12: Caffee Uno is located at 32 Bridge Street City Centre and the phone number is 01223448620. Question: Who has spoken the sentence 7? (A) User (B) System
Output:
Answer: (B) System