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: The train should go to Cambridge on Thursday. I would also need the train ID. Sentence2: Area does not matter, Ill go with anyone that you recommend, please book me for thursday at 19:15 for 6 people. Sentence3: I have several options for you. Do you have a certain area in mind? Sentence4: That sounds like the one I need. I'll reserve it myself though. Thanks for your help, I won't need anything else. Bye. Sentence5: Do you need any suggestions for attractions or hotels? I can help. Sentence6: Ok, you have a reservation at the Ugly Duckling. The reference number is MHERLSWD . Do you want the address? Sentence7: Where will the destination be? Sentence8: I have no preference, I just need to arrive by 14:15 Sentence9: I have TR4836 available. It leaves at 13:11 and arrives at 13:58. The cost is 9.80 pounds. Would you like this one? Sentence10: When would you like to leave at? Sentence11: No need for the address, thanks so much. I also need a train departing King's Lynn. Sentence12: I am leaving on Thursday and would like to arrive by 14:15. Sentence13: OK, what day are you traveling, and at what time? Sentence14: Please help me find an expensive restaurant that serves Chinese food. Thank you. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System