You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
One 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 is here: 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

Now, solve this: Sentence1: I'm looking for a train that leaves from London Liverpool Street on Thursday, is there any information you can give me about something like that? Sentence2: Success! Your 3 seats are reserved and the total will be 49.8 GBP, payable at the station. Your reference number is SQ22G015 . Can I do anything further for you? Sentence3: Which area would you like for the nightclub? we have 5 in centre and 1 in south. Sentence4: You're welcome! Is there anything else I can do for you? Sentence5: There are three choices. The TR3839 departs London at 05:39 and arrives Cambridge at 07:07. That's the earliest departure. Would you like to book a ticket? Sentence6: Yes, for 3 people, please. Sentence7: In my opinion, the nicest one is Kambar nightclub. It's in the centre of town. Would you like more information on it? Sentence8: It doesn't matter, what would you recommend? Sentence9: Their phone number is 01223842725, and they are located at 1 wheeler street. Sentence10: Great! Thanks for your help today! Sentence11: Goodbye! Have a great day! Sentence12: Sure, can I have the phone number and address? Sentence13: Yes. Trains leave from London Liverpool Street every two hours, starting at 05:39. Was there a particular time of day you were interested in? Sentence14: No, you've covered everything. Goodbye. Sentence15: Yes, I'd also like to find a place to go. I was thinking a nightclub would be fun. Sentence16: I would like to arrive by 11:00 in Cambridge. Question: Who has spoken the sentence 5? (A) User (B) System
Solution:
Answer: (B) System