You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
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
Example solution: Answer: (A) User
Example 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

Problem: Sentence1: You are welcome. Thank you for contacting Cambridge TownInfo centre. Goodbye. Sentence2: Yes, you have. Thank you. Sentence3: Okay, I found 18 colleges all over town. Is there a particular area you're interested in so I can narrow down your options? Sentence4: The postcode is CB3 9AL. What else can I help you with? Sentence5: I was able to book on train TR9263 for Tuesday leaving at 05:54 and arriving at 06:43. The total fee is 89.6 GBP and the reference number is 0QGD9JB5 . Sentence6: cambridge on teusday. book for 7 people and please get me reference number. Sentence7: What part of town is it in? Sentence8: Thank you for using our services. Have we met all of your needs? Sentence9: Whichever you recommend is great Sentence10: Thank you I also need to find a college to go to. Sentence11: depart from stevenage and should arrive by 15:30. Sentence12: Clare Hall is in the west part of town. Do you need more information? Sentence13: I'm looking to book a train, if you could help me. Sentence14: I recommend clare hall located at herschel road and has free entrance. Sentence15: We can definitely help you with that. Where will you be departing from, and what is your destination? Sentence16: I can certainly look that up for you, what is your destination? Sentence17: That is everything thank you so much. Sentence18: Thank you! Can you please tell me the postcode? Question: Who has spoken the sentence 9? (A) User (B) System
Solution: Answer: (B) System