Given the task definition, example input & output, solve the new input case.
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
Output: Answer: (A) User
The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

New input case for you: Sentence1: There are 44 attractions in the center of town. Is there a particular kind of attraction you'd be interested in? Sentence2: Can I get their phone number and address, too? I also need to book a train from Cambridge arriving by 10:15 on Friday. Sentence3: I apologize. I need to clarify that I'm looking for an entertainment type of attraction in the center of town. Sentence4: That's all I needed, thank you very much! Sentence5: Yes! The Cambridge University botanic gardens are in the centre and the entrance fee is 4 pounds. Sentence6: What trains do you have going to Bishops Stortford on Friday? Sentence7: You're very welcome. Have a lovely day. Sentence8: Are there any parks in the centre of town? Sentence9: There are 10 trains that go to Bishops Stortford, did you know what time you would like to arrive by? Sentence10: I am looking for suggestions on where to go in town, I would like it to be entertaining and in the centre. Sentence11: Tr6809 leaves Cambridge at 07:29. It has a travel time of 38 minutes and costs 10.10 pounds. Do you need any thing else today? Sentence12: The Museum of Archaelogy and Anthropology is free to enter. Would you like the address? Sentence13: Just some kind of entertainment. Sentence14: There is a nightclub called club salsa if you like to dance. Would you like more information? There are also some museums and cinemas if that sounds better. Sentence15: What is the entrance fee for the museum please. Sentence16: Thanks. Will you be able to book me that train? Sentence17: There are 3 trains that arrive before 10:15. One that arrives at 6:07, another at 8:07 and another at 10:07. Which would you prefer? Sentence18: I need to arrive by 10:15. I won't need you to book tickets for me, but the trainID, travel time, and price would be super helpful. Sentence19: There are no entertainment attractions in the centre of town in the system. Sentence20: The one for 8:07. I just need the train id, travel time, and price. No need to book it. Sentence21: The address for the botanic gardens is bateman street and the phone number is 01223336265. Sentence22: Sure thing what destination and departure are you looking for on your train? Question: Who has spoken the sentence 19? (A) User (B) System
Output:
Answer: (B) System