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: Your booking was successful. Your table will be reserved for 15 minutes. The reference number is 0MRW9QAM . Sentence2: Can you please make a reservation for me? It needs to be for 3 people at 14:45 on Friday. Sentence3: Tell me where your departure and destination sites will be. Sentence4: Is there anything else I can assist you with today? Sentence5: We are wanting to save money for the rest of the sights in town, so let's go with the cheaper one. Can you tell me about it? Sentence6: Sweet, that's all I need today. Sentence7: What is the address and postcode of the park? Sentence8: Thank you very much. Sentence9: Yeah, I also wanted to find a park to visit in the north. Sentence10: milton country park is in the north and it is free to visit. Sentence11: I am showing 2. The nirala which is moderate priced and the royal spice which is cheap. Would you like to book one of them? Sentence12: Milton country park is located at milton country park, milton, postcode cb46az, phone 01223420060. Is there anything else you need today? Sentence13: Sure, the Royal Spice is located on Victoria Avenue, Chesteron and the post code is cb41eh. Sentence14: I need a taxi from the park going to the restaurant. I'd like to arrive before my dinner reservation, if at all possible. Sentence15: Can I help you with anything else? Sentence16: I also need a taxi between the two. Sentence17: That's great thank you! Sentence18: Wonderful! Thanks for contacting the cambridge towninfo centre and take care! Sentence19: Booking completed! Booked car type : black audi Contact number : 07283412603 Sentence20: i am looking for a place to eat. The restaurant should be in the north and should serve indian food. Question: Who has spoken the sentence 4? (A) User (B) System
Solution: Answer: (A) User