TASK DEFINITION: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
PROBLEM: Sentence1: I am planning a trip in Cambridge and need a place to stay with free parking. Sentence2: Excellent. Can I book that for 2 people for 2 nights starting on Tuesday Sentence3: I have many different options available. Let me ask, do you have a certain price range or area in mind? Sentence4: Thanks i will find you one.Thanks a lot Sentence5: I have no particular price range, but would like a guesthouse in the north part of town. Sentence6: That narrows it down to about 9 different options. Most offer both free parking wifi. If you would like my personal recommendation, I would say go with the Hamilton Lodge. Sentence7: Booking was successful. Reference number is : 152UJWIK . anything else today? Sentence8: Yes, I need to find a train on Tuesday from Cambridge to London Liverpool Street. Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Okay, the TR8944 leaves at 15:39 and arrives by 17:07. Would you like me to book tickets for you? Sentence2: There are 10 trains leaving fro Liverpool Street on Thursday. Did you have a departure time in mind? Sentence3: Okay I have booked you and your reference number is WLUOQKEV . Sentence4: rosa's bed and breakfast is in the cheap price range Sentence5: I'm looking for a train departing from london liverpool street leaving on thursday. Sentence6: Do you need a taxi? Sentence7: Goodbye, and thanks again. Sentence8: Yes, I don't want to leave for Cambridge until 15:00 at the earliest. Sentence9: Sure thing. Thanks for letting us help you today! Sentence10: Thank you. I also need a hotel in the south. Sentence11: then thanks for inquiring with us. Sentence12: I don't need a taxi, thanks for asking Sentence13: No price range but I do want a 4 start. Sentence14: Yes, for 6 people. Sentence15: What price range are you interested in? Sentence16: That sounds great. I'll need a reservation for 6 people for 4 nights on Thursday. Sentence17: I've gone ahead and booked that for you. Your Reference number is : EUZ34KY9 . Is there anything else I can assist you with today? Sentence18: No, that takes care of everything I need. Thanks! Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: You are very welcome. Thank you for using our service. Sentence2: What an interesting name! Hmm, what do you have in the way of seafood restaurants? Sentence3: You are welcome. Goodbye! Sentence4: Of course! It's a college in west Cambridge at Trinity Lane cb21tl with phone number 01223333200. The entrance fee is 2.50 pounds. How else may I assist you? Sentence5: Lock Fyne is what you're looking for. They're at The Little Rose 37 Trumpington Street. Would you like me to book you a table? Sentence6: You've told me everything I need to know. Thanks! Sentence7: I would like to visit Clare College. Can you give me more information on it? Sentence8: Im looking for a expensive restaurant in the centre. Can you assist? Sentence9: There are more than 30 of them. Did you have a cuisine in mind? If you're in a mood for a gastropub I can recommend The Slug and Lettuce. Sentence10: No thanks that's all I needed thank you for your help. Question: Who has spoken the sentence 6? (A) User (B) System

SOLUTION:
Answer: (A) User