You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
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
Example solution: Answer: (A) User
Example 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

Problem: Sentence1: Yes that booking was successful and your reference number is 10TULA8Z . Sentence2: Does it have free wifi? Sentence3: What day would you be arriving? Sentence4: Let's finish booking the cambridge belfry first. How many people are going to stay? Sentence5: Have a great trip. Goodbye. Sentence6: I have Pizza Hut City Centre, Ask, and Zizzi Cambridge. Which would you prefer? Sentence7: The booking was successful for 2 nights at The Cambridge Belfry with check-in on Saturday. Reference number NCCFYY9W . Would you like to book that taxi now? Sentence8: I'd like a place in the centre. Sentence9: There will be 6 people staying for two nights. Sentence10: Zizzi please, can you book me for 6 people on saturday at 16:15? Sentence11: I don't need anything else. Thank you, bye! Sentence12: Yes, it has free wifi. Would you like me to book it? Sentence13: Yes, please. I want to book if to get me to the restaurant on time. Sentence14: I found The Cambridge Belfry. It is cheap but well valued. Sentence15: You are all set the car type is a yellow honda and the contact number is 079969243265. Do you need anything else today? Sentence16: Can you tell me about any cheap priced italian restaurants in cambridge? Sentence17: Yes and I need the reference number. Also I need a taxi to arrive at the restaurant on time. I would like the number and car type please. Sentence18: We need to check in on Saturday. Sentence19: Thanks! I also need to find a cheap hotel. Sentence20: i got a variety. which is your prefered location? Question: Who has spoken the sentence 1? (A) User (B) System
Solution: Answer: (B) System