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: Where will you be traveling to? And what day will you be leaving? Sentence2: Yes. It is in the centre of town on trinity lane. Sentence3: no thanks. not necessary. thanks though. goodbye Sentence4: What is the postcode for this place? Sentence5: I need to leave after 14:30 please. Sentence6: thanks for using our service. goodbye. Sentence7: What time would you like to arrive by? Sentence8: Okay. The TR7245 leaves at 15:21. Would you like me to book it for you Sentence9: The postcode is cb21tt. Can I help you with anything else today? Sentence10: Hello, could you tell me where the old schools attraction is located? Sentence11: I need a train leaving Cambridge after 14:30 Sentence12: What is the travel time and how much will it cose? Sentence13: i'm going to stevenage on wednesday. Sentence14: Travel time is 49 minutes, and the price is 12.80. Would you like me to book passage for you? Question: Who has spoken the sentence 11? (A) User (B) System
Student:
Answer: (B) System