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: What do you have near the restaurant? Sentence2: There are many attractions in the centre, do you have a preference about which kind you would like to visit? Sentence3: you would love all saints church Sentence4: You can reach them by phone at 01223452587. Entrance is free. The address is jesus lane. Sentence5: There are 11 British Resturants in centre. What price point would you like? Sentence6: Alright, please tell me the phone number and address there, as well as the entrance fee Sentence7: Sure can, what type of food would you like? Sentence8: That is everything that I need. Sentence9: Reservation is booked your Reference number is : GGJCV0HF . May i help you with anything else? Sentence10: Is there anything else I can do? Sentence11: I am also looking for some places to go around the restaurant. Any recommendations? Sentence12: Great, that's very helpful. Thank you. Sentence13: Hi, I am traveling to Cambridge and am so excited to try some of your local restaurants. Can you help me choose one? Sentence14: I would love to find a good british place in the centre of town. Sentence15: Please make a booking for 7 people at 18:15 on Tuesday. Sentence16: Excellent. I have 5 options for you. Restaurant One Seven is a moderately priced British restaurant on Regent Street. Would you like the phone number? Sentence17: I'd like one in the moderate price range, please. Sentence18: Have a good time, good bye. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System