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: Could you please clarify your departure location and arrival destination? Sentence2: Coming to Cambridge from broxbourne on Friday. Sentence3: Okay thank you that's all I needed. Sentence4: Yes thank you. I'd like to stay in Cambridge. We're looking for a hotel with free parking and free wifi. Sentence5: I need information on a train as well. It should leave after 18:45. Sentence6: Do you have one in the east with an expensive price range? Sentence7: There are quite a few like that. If you're open to guesthouses , Limehouse in the north of town is nice. Or were there other features you were looking for? Sentence8: Your booking was successful! Your reference number is JBBPQWA1 . Is there anything I else I can help you with today? Sentence9: yes, please. For 6 people for 3 nights starting on friday. Sentence10: It was a pleasure serving you. I do so hope that your stay in Cambridge is pleasant. Goodbye! Sentence11: TR5056 costs 17.90 pounds and the duration is 60 minutes. Sentence12: I have train TR5056 that departs at 19:32 and arrives by 20:32. Would that be something that would work for you? Sentence13: Yes, on, Holiday inn Exlpress, Cambridge, shall I book it? Sentence14: Yes, that would work for me.I will just need the price, train id and travel time. Question: Who has spoken the sentence 9? (A) User (B) System
Solution:
Answer: (B) System