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: No that is all. Thank you for helping me. Sentence2: Yes, I would like a moderately priced Italian restaurant. Sentence3: Can you book reservations for place to eat for me. Sentence4: No preference, what would you suggest? Sentence5: I need to get to Peterborough. Can you find me a train that gets there by 13:30? Sentence6: I would also like to find a museum in town. Sentence7: The postcode for the gallery is cb11ln. Can I help with anything else? Sentence8: There are many choices for restaurants in town. Do you have a specific area, price range, or type of cuisine? Sentence9: Yes, what is the postcode for the broughton house gallery? Sentence10: I will need three tickets please. Sentence11: The train ID is TR1108, and the departure time is 12:34, but to book your ticket I'll need to ask - how many tickets would you like to purchase? Sentence12: Hmm, my restaurant reservation system seems to be down at the moment. Is there anything else I can help you with right now? Sentence13: You are all ready with three tickets. The total fee is 49.5 and you will pay that at the station. Reference number is JPNLH7QF . Sentence14: You are welcome. Thanks for using our service. Have a good day. Goodbye. Sentence15: I will depart from Cambridge on Wednesday. Sentence16: The train closest to your requested time is the TR1108, leaving Cambridge at 12:34, arriving Peterborough at 13:24. Would you like to book a ticket? Sentence17: Please and I would appreciate it if you could give me the train ID, departure time, and booking reference. Sentence18: The broughton house gallery is popular and it is free. It is in the center of town at 98 king street. Do you need more information? Sentence19: There are 23 museum options in town. Can you help me by narrowing down where in town you'd like the museum to be? Sentence20: What day will you travel on ? Question: Who has spoken the sentence 18? (A) User (B) System
Solution: Answer: (A) User