You will be given a definition of a task first, then some input of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: I'm looking for a restaurant that serves swedish food Sentence2: Thank you, goodbye. Sentence3: There are no restaurants that serve swedish food. Are you interested in some other type of food? Sentence4: What is the address, phone number, and postcode? Sentence5: The Gourmet Burger Kitchen's phone number is 01223 312598 , they are loated at Regent Street City Centre, and there post code is .C.B 2, 1 A.B Sentence6: Yes, how about North American food. I will also need the address, phone number, and postcode. Sentence7: Thank you for using our system. Good bye Sentence8: There is one location that servies north american food. It is and expensive restaurant in the centre of town. Question: Who has spoken the sentence 7? (A) User (B) System
Output:
Answer: (B) System