Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Positive Example 1 -
Input: 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
Output: Answer: (A) User

Positive Example 2 -
Input: Sentence1: Guten Tag, I am staying overnight in Cambridge and need a place to sleep. I need free parking and internet. Sentence2: I have 4 different options for you. I have two cheaper guesthouses and two expensive hotels. Do you have a preference? Sentence3: No, but I'd really like to be on the south end of the city. Do any of those fit the bill? Sentence4: Sure. Does price matter? We can narrow it down and find exactly what you need. Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (B) System

Negative Example 1 -
Input: Sentence1: I am looking for a hotel named alyesbray lodge guest house. Sentence2: i have their info, what would you like to know? Sentence3: I would like to book a reservation for it. Can you help me with that? Sentence4: I sure can. First, I will need to know when you want your stay to begin and how many days you'll be staying. Also, how many people will be staying? Question: Who has spoken the sentence 1? (A) User (B) System
Output: Answer: (A) User

Negative Example 2 -
Input: Sentence1: Hi there! Can you give me some info on Cityroomz?. Sentence2: Cityroomz is located at Sleeperz Hotel, Station Road in the Centre area. It is a moderatley priced hotel with a 0 star rating. Would you like to book a room? Sentence3: Yes please. I need it for 7 people for 3 nights starting on tuesday. Sentence4: How many days would you like to book it for? Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (A) User

Now complete the following example -
Input: Sentence1: I need to get a train going to Stevenage. Sentence2: I will need some more information. The train is departing from cambridge correct? What day would you like to leave? Sentence3: How about TR5343? It leaves at 15:21. Your next choice is TR9883 which leaves at 17:21. Sentence4: It is 12.80 pounds. Sentence5: No, not at this time. Thank you. Sentence6: jesus green outdoor pool and kings hedges learner pool are in that area. Could I get you info on one of those? Sentence7: I would like information on pools in the north. Sentence8: Sure, the phone number for jesus green outdoor pool is 01223302579. The address is listed as between victoria road and the river. Sentence9: thanks! that's all i need now Sentence10: Okay glad I could help. Sentence11: What is the price for TR5343? Sentence12: Is there any other info or booking I can do? Sentence13: Yes, departing from Cambridge. We'll be leaving on Tuesday, hopefully after 15:15. Sentence14: How about Jesus Green Outdoor pool. Could I have their address and phone number. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System