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? If you are still confused, see the following 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
Solution: Answer: (A) User
Reason: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

Now, solve this instance: Sentence1: There are 5 trains that meet those requirements. TR5504 would have you arrive by 13:27. Can I help you buy a ticket? Sentence2: If you have no particular requirements, you might like the Autumn House, which is an inexpensive 4 star guest house on the East side. Sentence3: I want to book it for one person, four nights starting on Sunday. Sentence4: Yes it does. Sentence5: Does it include free internet? Sentence6: It doesn't matter, and I don't need internet access. Sentence7: Fantastic! Have a good day. Sentence8: I can't rest yet. I still need a train. I am traveling from Cambridge to London liverpool street. Can you help me out? Sentence9: Booking was successful. Reference number: 9COW8ZI5 . Is there anything else I can help you with? Sentence10: You can rest now, your reference number is BQ8VSRRZ . Is there anything else I can assist you with today? Sentence11: I'm exhausted. Can you find me a guesthouse somewhere on the east side of town? Sentence12: I'd need to leave on thursday and arrive by 14:30. Sentence13: No, that is all, thank you. Sentence14: Absolutely. First, I need a few more details. What day will you be traveling? Sentence15: Yes please for one. I will also need a reference number. Sentence16: Sure. There are both moderate and cheap priced guesthouses in this area. Which would you prefer? Question: Who has spoken the sentence 4? (A) User (B) System
Student:
Answer: (A) User