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 am glad that I could help. Have a good day! Sentence2: What days are you planning on staying and how many people will be staying? Sentence3: The following train is available: TR8199 Broxbourne to Cambridge on Tuesday at 13:32 arriving at 14:32. This will cost 17.89GBP. Would you like to reserve this? Sentence4: Yes please. Just one ticket and could I get the reference number pleases? Sentence5: It's all booked, reference number is 22HE1KCU Sentence6: There are 2828 trains can you tell me where you would be leaving from and your destination? Sentence7: Yes, I was able to book the train for you. The reference number is 2DATSODP . Sentence8: I need a place to stay in the east Sentence9: Thank you I also need a train leaving after 13:15 on tuesday Sentence10: Yes, please book it. I need a reference number. I also need to book a train leaving after 13:15 on Tuesday. Sentence11: I would prefer a place in the moderate price range with 4 stars and free wifi. Sentence12: The train should go to cambridge and should depart from broxbourne. Sentence13: I have 3 results in the moderate price range. Do you need parking? Sentence14: Not a problem, would the A and B Guest House work for you? Sentence15: What pricerange are you looking for in your hotel? Sentence16: 1 person and 3 nights starting tuesday please. Sentence17: Ok, great! Thanks for all of your help. That is all I needed for today. Sentence18: No, I do not need parking. I would need you to book a place for 1 person who will be staying for three nights beginning Tuesday. Can you do that? Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User