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 I can. When will you be traveling? Sentence2: I am trying to book a train to broxbourne. Can you help me? Sentence3: Three people are booked. The reference number is 9W4723ZW . The total fee is 53.7 GBP payable at the station. Do you need anything else? Sentence4: Yes I am looking for a place to stay in the east that has a cheap price range. Sentence5: Ok, if you need any further assistance, feel free to contact us again at any time. Have a wonderful day. Sentence6: TR8300 Departs at 05:01, would that work for you? Sentence7: No, that will be all. Thank you. Sentence8: Are you sure I can't help you with a booking or more information about one of the hotels? Sentence9: I need to arrive by 15:00 on wednesday and depart from cambridge please. Sentence10: The address is 710 newmarket road and the postal code is cb58rs. May I help you with anything else? Sentence11: Yes - could you make a reservation for 3 people and provide me the reference number? Sentence12: We have 3 for you. All are guesthouses and located in the east. Allenbell, autumn house and leverton house. All have 4 stars and offer free wifi & parking. Sentence13: Excellent. That's all I need thanks. Sentence14: Actually, yes. Can you give me the address and postcode for Autumn House? Question: Who has spoken the sentence 6? (A) User (B) System
Solution:
Answer: (A) User