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: I don't care when I arrive, but I need to leave after 10:00. Sentence2: Perfect, thanks so much for your help. Sentence3: Yes. Wednesday please. Sentence4: I have successfully make a booking for 5 on that train. Sentence5: Sounds great. Can I get their postcode please? Sentence6: Is there anything else I can assist you with today? Sentence7: Can you find me a train from Stansted Airport? Sentence8: Alright, thanks for contacting Cambridge TownInfo centre! Have a good day. Sentence9: TR0467 leaves the airport at 10:24. Would you like tickets for that train? Sentence10: No that is everything. Have a good day. Sentence11: Queen's college is an excellent choice. Sentence12: The postcode for Queen's College is cb39et. And the reference number for your train (booked earlier) is WMUC700A . Sentence13: Can I have the reference number please? I'm also looking for some places to go, maybe a college in the west. Sentence14: Not a problem. Any day in particular? Sentence15: There are plenty of options. Where will you be arriving and do you have a time preference? Sentence16: Yes, for five please. Question: Who has spoken the sentence 14? (A) User (B) System

Solution: Answer: (A) User