Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Problem:Sentence1: In the north please. Sentence2: Yes please, can you book 2 tickets and can i get a reference number please? Thank you. Sentence3: TR1703 leaves cambridge on sunday at 19:40 and arrives at stansted airport at 20:08. The cost is 8.08 pounds. Would you like me to book it for you? Sentence4: Okay, great. Let us know if you need anything else. Sentence5: It doesn't matter what time I leave as long as I arrive at the airport by 20:45. Sentence6: What time would you like to leave? Sentence7: Restaurant two two is an expensive french restaurant in the north. Would you like a reservation? Sentence8: I want an expensive french place to dine in. Sentence9: no i want the post code and address Sentence10: Where are you departing from, What day do you want to travel and how many people can I book tickets for? Sentence11: Sure, do you prefer the centre of town or the north end? Sentence12: Thank you, my trip is planned, that is everything. Sentence13: a train. The train should arrive by 20:45 and should go to stansted airport Sentence14: Sure, they are located at 22 Chesterton Road Chesterton and their postcode is cb43ax. Is there anything else you need? Sentence15: Booking was successful, the total fee is 16.16 GBP payable at the station . Reference number is : 86BN010L Sentence16: Departing from Cambridge on Saturday. Question: Who has spoken the sentence 5? (A) User (B) System
Solution:
Answer: (B) System