Teacher:You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Teacher: Now, understand the problem? Solve this instance: Sentence1: There are 7 trains leaving Cambridge that can have you there by 18:15. They leave Bishops stortford starting at 05:29 and leave every 2 hours after that. Sentence2: Sure, I can check on that for you. Where would you like to go? Sentence3: Curry Garden is very nice. They're an expensive Indian restaurant in the city centre. Can I make you a reservation? Sentence4: And at what time would you like to travel? Sentence5: I would like to arrive by 18:15. Sentence6: I would like to leave cambridge on sunday. Can you check on trains for me? Sentence7: Not a specific area, just enough for the restaurant to hold 7 people. Sentence8: That's all. Thanks! Sentence9: You are so welcome. Have a great day and enjoy Cambridge! Sentence10: Yes, that would be great. Can you book me a table for 7 people on Sunday at 13:00? Sentence11: I would like to go to bishops stortford. Sentence12: Your table at Curry Garden has been reserved and will be held for 15 minutes past the reservation time. The reference number is 6X4B5F77 . Need anything else today? Sentence13: I'd like the earliest and need the train ID and travel time please. I'm also looking for an expensive Indian restaurant, what options are there? Sentence14: TR6572 is the earliest train leaving at 05:29. I found many indian restaurants. Is there a specific area you would like to be in? Question: Who has spoken the sentence 7? (A) User (B) System
Student:
Answer: (B) System