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: Alright. I booked your train leaving Cambridge at 19:34 and arriving in Peterborough at 20:24. The reference number is A8T38EJZ . Sentence2: Cityroomz is a moderately priced hotel with internet. Would that work for you? Sentence3: What day are you traveling, and to which station? Sentence4: Thanks, have a good day. Sentence5: You, too. Goodbye. Sentence6: Okay. Call us back if you need me to book anything for you. Sentence7: Yes that will work. Can I get the hotel's phone number? Sentence8: We have 30 such entries. Do you have a time you'd like to leave by? Sentence9: Sure thing, their number is 01223304050. Is there anything else I can help you with today? Sentence10: Any time is fine as long as I can book for four people. I also need the reference number, please. Sentence11: I'll be traveling on wednesday, and I will be go to peterborough. Sentence12: There are 9 different hotels that have free wifi that aren't guesthouses, do you have a price range in mind? Sentence13: No particular price range but I would like it to be in the centre. Sentence14: Thanks. I'm also looking for a hotel (not a guesthouse) with free wifi. Sentence15: No, that will be all, thank you for your help! Sentence16: I need a train departing from cambridge and arriving by 20:45. Question: Who has spoken the sentence 14? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: What is the address and postcode? Sentence2: That's all I need. Thanks, good bye. Sentence3: The address is Parkside, Cambridge and the postcode is CB11JG. Sentence4: The telephone number for the Parkside Police is 01223358966. Sentence5: Glad I could be of service. Sentence6: I'm looking for a the Parkside police station. Question: Who has spoken the sentence 2? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: It is. How many people will there be and what time would you like on Wednesday? Sentence2: Okay I booked you into the J Restaurant that also serves Asian food in the cheap price range and your reference number is 7MUMBMFD . Sentence3: Is dojo noodle bar in the centre of town? I need something in that area, please. Sentence4: The booking was unsuccessful. Would like to book it at another time? Sentence5: The reservation needs to be for 2 for 17:00 on Wednesday evening. Do they have a table then? Sentence6: I need a cheap place to dine please. Sentence7: I don't care about the type of food. I need a reservation for Wednesday night. Sentence8: Thanks so much. That's all I needed. Sentence9: I can book you for dojo noodle bar, how many should I book for and what is the preferred time? Sentence10: No. It needs to be t 17:00. Another restaurant in the same area and price range would work. Sentence11: We have 22 inexpensive restaurants. What sort of cuisine would you like? Sentence12: You're welcome. Enjoy your day. Question: Who has spoken the sentence 11? (A) User (B) System

SOLUTION:
Answer: (B) System