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 also want to dine at a moderate restaurant in the center area. Sentence2: Certainly, do you have an area, pricerange, or food type? Sentence3: What price range are you looking for? Sentence4: Okay, I've made the reservation for 1 at the varsity restaurant on tuesday at 11:30. The reference number is AXLJBTF7 Sentence5: I need it for 1 on 11:30 Tuesday. Sentence6: The Primavera is located in the centre area. I'll be happy to find a restaurant in that area for you. What type of food would you like? Sentence7: I would like something in the moderate price range. Sentence8: Your are all set, look for a grey volkswagon, if there are issues, the driver can be reached at 07015859463, can I assist with anything else? Sentence9: Can you help me find some local restaurants to dine in during my visit to Cambridge? Sentence10: I also want a taxi to go between those two places. Sentence11: welcome and thanks for using our services Sentence12: Something near the attraction primavera would be nice. Where is that located? Sentence13: I would suggest the varsity restaurant. Sentence14: The Primavera can be reached at 01223357708 Sentence15: Ok great and what times do you prefer? Sentence16: That is all thanks. Sentence17: What is the phone number for The Primavera? Sentence18: I don't care about the departure time, I just need to be at the restaurant by the booked time. Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System