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: Yes, that will be good! I need eight tickets, please. Sentence2: The address is 732-734 newmarket road. Do you need any more information? Sentence3: What is their phone number? Sentence4: What is the address of the hotel? Sentence5: Can you also give me some information on the Leverton House hotel? Sentence6: Thanks! That's all I needed. Goodbye! Sentence7: I want to leave on wednesday and arrive by 10:15. Sentence8: You're welcome. Please let us know if you need any more assistance? Sentence9: There are 5 trains arriving by 10:15, would you like to book one leaving at 8:24 and arriving at 8:52? Sentence10: You now have 8 tickets on the TR7667. Your reference number is A1S8REZC and your total will be 80.8 GBP, payable at the station. Is there anything else I can do for you today? Sentence11: I found 133 train trips, do you have a date and time you would like to travel? Sentence12: Their phone number is 01223292094. Sentence13: I'm looking for a train departing from Stantsted Airport going to Cambridge. Sentence14: I certainly can. What would you like to know about the Leverton House? Question: Who has spoken the sentence 4? (A) User (B) System
Student:
Answer: (A) User