Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: I have one, Gourmet Burger Kitchen. Sentence2: Unfortunately, they are all full at that time. Would you like me to try another restaurant? Sentence3: I want to book a table for 5 people at 13:00 on saturday. Sentence4: I am looking to dine out in the centre part of town and I would like to find a place that serves north american food. Sentence5: Yes. Please look for a different place in the same area and price range. Sentence6: Not right now. Thank you for your time. Sentence7: Okay, please let me know if you need anything else. Sentence8: I'm sorry but Gourmet Burger Kitchen was the only North American restaurant in the centre area. Would you like for me to try another area? Question: Who has spoken the sentence 2? (A) User (B) System
Output:
Answer: (A) User