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: Thanks. Now can you look up a welsh food restaurant that is expensive and in the centre? Sentence2: You're welcome. Enjoy your visit. Sentence3: I want to take a train from Stevenage to Cambridge. Sentence4: Yes there is one option here. It is little seoul. What day and time for your booking? Sentence5: I don't need to purchase tickets today, but can you tell me the train ID and the total travel time to get me there? Sentence6: What is the price of a ticket, please? Sentence7: I Would like it on Monday at 18:15. Sentence8: Booking was successful. The table will be reserved for 15 minutes. Your Reference number is : X54JY6CB . Sentence9: Thanks, that's all I needed today! Sentence10: Can you please try again? Sentence11: I would like to leave on Monday and arrive in cambridge by 12:45. Sentence12: For how many people? Sentence13: TR9062 will take 49 minutes, from 11:54 to 12:43. Do you need anything else? Sentence14: Oh darn it! How about... maybe korean food? Still in the centre, and they need to be able to seat 7 people. Sentence15: It isn't allowing me to book that for you. Is there anything else I can try for you? Sentence16: What day and time do you want to leave Stevenage? Sentence17: Departure time isn't important as long as I can get there by 12:45. Sentence18: I have 4 trains available. What time would you like to leave? Sentence19: The price of TR9062 is 12.80 pounds. Sentence20: I'm sorry I couldn't find any welsh restaurants matching that criteria . Would you like to try a different area or type of food? Question: Who has spoken the sentence 6? (A) User (B) System
Solution:
Answer: (A) User