Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
See one example below:
Problem: 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
Explanation: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

Problem: Sentence1: You are very welcome. Have a wonderful visit! Sentence2: Okay the gonville hotel looks good, it's in the city centre. Would you like a booking? Sentence3: I need a train leaving Cambridge on Sunday. Sentence4: Goodbye and have a safe trip! Sentence5: We have quite a few options available to you, where are you heading to? Sentence6: The Gonville does include the internet. Is that alright? Sentence7: I also need a place to stay. I would like a hotel with a 3 star rating and free parking. Sentence8: No thank you. I appreciate the help today. Sentence9: I want to confirm with you that the gonville does not need to include internet. Sentence10: I have completed the booking. The total fee is 79.67 GBP and your reference number is 58YNZ8EQ . Sentence11: Goodbye! Sentence12: I'm just looking for now. Can you recommend a hotel? Sentence13: Yes, for six people, please. I will need a reference number, as well. Sentence14: Yes, can I get the address please? Sentence15: Yes, and thank you kind person for helping me! Sentence16: The address is gonville place. Can I help you with anything else? Sentence17: Shall I book you a room then? Sentence18: TR9732 departs Cambridge at 19:59 and arrives London Liverpool Street by 21:27. Would you like for me to book that? Sentence19: There are 2 expensive hotels and 3 moderate price guesthouses meeting your needs. Does the area matter to you? Or the type of lodging? Sentence20: I need to arrive by 21:30 and go to London Liverpool street. Question: Who has spoken the sentence 18? (A) User (B) System
Solution:
Answer: (A) User