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

Sentence1: You have a table at da vinci pizzeria. The table will be reserved for 15 minutes. Reference number is : BSAJGSJ8 . Do you need anything else today? Sentence2: Thank you, have a good day. Goodbye. Sentence3: Sure, do you want to eat at a specific location or have a type of food you like? Sentence4: I need a table for 3 people. Sentence5: How many will be in your party? Sentence6: The type of food doesn't matter to me, but I would like the restaurant to be in the north. Sentence7: Okay there is indian and italian food. Which do you prefer? Sentence8: That is all for now. Thank you Sentence9: I am looking for a cheap place to have a meal. Sentence10: Italian sounds good. I need a reservation for Thursday at 16:15, please. Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System