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: cheap, but i still need free wifi. Sentence2: That was all I needed today, thank you very much. Sentence3: I would suggest the alexander bed and breakfast, it has a 4 star rating, free parking and internet and it is in the cheap price range. Would you like a reservation? Sentence4: Yes, that is correct Sentence5: There are 9 that meet those requirements, was there an area you wanted to stay in? Sentence6: Okay, the booking was successful. Your reference number is M3UVOLVXD . The total fee of 226.8 GBP is payable at the station. Sentence7: Tuesday please. Thanks Sentence8: We have 35 trains taking that route, what day of the week will you need that? Sentence9: What day would you like that on? Sentence10: TR8632 leaves at 19:09. Want to book it? Sentence11: I would like to leave on tuesday. Sentence12: I need to catch a train that departs from Leicester after 18:30. Sentence13: Thank you for using our service today. Sentence14: Okay. Your booking was successful. The reference number is W7DGP5W4 . Can I help with anything else today? Sentence15: What's the best one of those options? I need it for 4 nights. Sentence16: Just to be certain, book 6 train tickets to cambridge from Leicester on tuesday at 19:09, correct? Sentence17: Thanks! I'm also looking for a place to stay that's a guesthouse. Sentence18: Yes, please. I'll need a booking for 6 and the reference number. Sentence19: What price range would you like? Sentence20: Yes please. For 5 nights for the same group of people. Question: Who has spoken the sentence 18? (A) User (B) System
Student:
Answer: (A) User