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: You're welcome! Enjoy your stay! Sentence2: Sure. I recommend kings hedges learner pool. Their address is jedburgh court, kings hedges Sentence3: There are 11 hotels with the price range of moderate to cheap. Which would you like to know more about? Sentence4: The Archway House has both free internet and parking, four stars, and is moderately priced. Would you like me to book it? Sentence5: A swimming pool would be great. Can i get the address please? Sentence6: I want to leave the hotel at 5:30. Sentence7: Great! I'm also going to need a taxi, for between the two places. Sentence8: Okay, please tell me your departure time and location as well as your destination Sentence9: Sure can, we have 33 locations available, do you have anything to help narrow it down? Sentence10: There are four places to go in the north area. Two are swimming pools and there is a park and boating area. Which would you like info on? Sentence11: Is there a price point? Sentence12: Hi, I am planning a trip and looking for a place to stay. Can you help me with one? Sentence13: I have you booked, grey Audi. Contact number is 07341216795 Sentence14: Thanks so much. That's all for today, goodbye Sentence15: Not really. I'm hoping you give me the price range along with my options. Sentence16: Can you pick a good one in the moderate price range? Sentence17: Not yet but I would like to find a place to go near the same area as the hotel. Sentence18: I need it to be in the north. I'd also like free parking and free wifi. Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User