You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
One example: Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
Solution is here: Answer: (A) User
Explanation: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

Now, solve this: Sentence1: Thanks! You're very welcome! You have a great day too! Sentence2: It's an expensive restaurant in the south. It serves indian food. Sentence3: Your booking was successful! Your table will be reserved for 15 minutes. The reference number is 6KURIUG5 . Sentence4: I would like to book a table for 8 people on Sunday at 19:30. Sentence5: Thanks so much. I think that's all I needed. Have a great day. Bye. Sentence6: Hello, I am looking for a restaurant name taj tandoori. Question: Who has spoken the sentence 1? (A) User (B) System
Solution:
Answer: (B) System