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: I will travel on Sunday. Sentence2: A total of five entries found. How about TR7447? It arrives at 13:51, and leaves at 13:00? Then we can get back to the restaurant reservation we had been working on. Sentence3: Where shall the train go? Sentence4: What day do you want to travel? Sentence5: Thank you, that's all I need today. Sentence6: thank you do you know if they take reservations? Do you know the hours of the business? Sentence7: The train should arrive by 16:30 and should depart from cambridge. Sentence8: Pizza Express Fen Ditton is located on Jesus Lane. The phone number is 01223324033. Sentence9: Yes, that will do. I need tickets for 3 people please. Sentence10: There is a train that leaves 13:17. Sentence11: Great. Well, I hope you have a wonderful trip. If you need anything else, don't hesitate to contact us again. Goodbye. Sentence12: Your train tickets are booked, ref #6QVPO3N3 . Can I help you with anything else today? Sentence13: I need a reservation for 3 people on saturday. Sentence14: The train should arrive by 16:30 and should depart from cambridge Sentence15: what time does that train arrive? Sentence16: Can you help me locate a restaurant called Pizza Express Fen Ditton? Sentence17: What time would you like to dine? Sentence18: I am unable to locate the hours of Pizza Express; however, they do take reservations if there is a time you would like me to try to book for you. Question: Who has spoken the sentence 7? (A) User (B) System
Output:
Answer: (B) System