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 have 13 trains that would work. They depart every hour, starting at 11:32. What time would you like to arrive in Cambridge? Sentence2: I can help you with that, how many tickets do you need? Sentence3: I want the restaurant to be expensive. Sentence4: I just need information right now. Would you choose a train leaving after 11:00? I need the train ID, arrival time and price, please. Sentence5: I need to take a train, I want to leave on Wednesday after 11:00. Sentence6: There are six options but my personal favorite is saffron brasserie, would you like a booking or just more information? Sentence7: Thank you , can you help me find an Indian restaurant in the centre? Sentence8: From broxbourne to cambridge. Sentence9: sure, what is your destination? Sentence10: There are several Indian restaurants to choose from, are you looking for a certain price range? Sentence11: Arrival time doesn't matter as long as I leave after 11:00. Sentence12: I trust your opinion. Please book a table at Saffron Brasserie for 5 people at 15:15 on Wednesday. Sentence13: Your reservation was made at the saffron brasserie. Your reference number for your reservation is 0B8PEDPB . Sentence14: Thanks for using the Cambridge TownInfo Centre. Goodbye! Sentence15: TR5953 arrives by 12:32 and costs 17.90 pounds per ticket. The travel time is 60 minutes Sentence16: Thank you so much. That was everything I needed! Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System