You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: What day would you like to depart? And where will you be heading? Sentence2: No thank you. I am also looking for a restaurant called curry garden. Sentence3: I want to leave on Friday and go Cambridge. Sentence4: I found it would you like a reservation? Sentence5: Okay enjoy your dining and your visit in Cambridge. Sentence6: I need some information on a train going to cambridge. Sentence7: Which station will you be leaving from? Sentence8: No, that's fine, thank you. I'm also looking for a restaurant called the Curry Garden. Sentence9: Thanks so much. You have been very helpful. That is all I'll be needing for today. Bye. Sentence10: Curry Garden is an expensive Indian restaurant in the center of town, located at 106 Regent Street City Centre, cb21dp. Sentence11: There are 5 different trains for that day/time, but they are all 12.80 pounds. Would you like to book a ticket? Sentence12: I'll be leaving from Stevenage on Friday after 15:15. How much will that cost? Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System