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: Yes, that works great. Could you book 2 tickets for me please? Sentence2: I'd like to arrive by 08:00, and I'd like to travel on the same day that I'm going to the Noodle Bar. Sentence3: Booking is successful, you will need to pay 15.68 at the station, your reference number is 9NJNSEIC ., anything else that I can help with? Sentence4: Booking was successful. The table will be reserved for 15 minutes. Reference number is : EYEGC64E . Dojo Noodle Bar. Is there anything else? Sentence5: No thank you. That will be it. Sentence6: I need a train from kings lynn to cambridge, if possible. Sentence7: I have train TR5198 departing at 07:11 and arriving at 07:58. Would that work for you? Sentence8: I'm looking for a cheap restaurant in the centre. Sentence9: I don't really have a preference. I just need something for Sunday at 18:00. There will be 2 of us. Sentence10: Thank you, enjoy the rest of your day Sentence11: There are several options to choose from in the centre in the cheap price range. What kind of food are you in the mood for? Sentence12: There are 133 trains available. Tell me more about your trip. Question: Who has spoken the sentence 6? (A) User (B) System
Solution:
Answer: (A) User