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: A museum would be great. Could I have the address of one you suggest? Sentence2: That sounds great. May I have the address, please? Sentence3: Thank you! That's all that I needed. Sentence4: I found a few choices for you. Would you be interested in Chinese, Indian, Italian, or Mexican cuisine? Sentence5: Your reservation is booked at Chiquito Restaurant for 19:30 on Monday. The restaurant is located at 2G Cambridge Leisure Park, Cherry Hinton Road in Cherry Hinton. Your reservation number is SLYNF4LH . Sentence6: You're welcome, have a great day. Sentence7: Yes, will there be any theater performances on the next night, Tuesday? Sentence8: the byard art museum offers free entrance fee Sentence9: The Byard Art Museum is located at 14 King's Parade. Is there anything else I can help you with? Sentence10: Wonderful. Have a good visit. Sentence11: I want an expensive restaurant in the South. Sentence12: Mexican will would great. I need a reservation for 2 at 19:30 on Monday. Sentence13: Actually that is all I need. thank you for you're help. Sentence14: Your taxi reservation has been confirmed on a white skoda. Their contact number is 07558835298. Is there anything else I can help you with? Sentence15: Actually, I am also looking for places to go in the same area as Chiquito Restaurant is. Sentence16: Yes can you book me a taxi to take me to the restaurant from the museum? Sentence17: We have several. Would you be interested in a museum, a park or a theatre? Sentence18: If you want to stay in the south, there is the Junction on Clifton Way. There are also 4 theatres in the center of town. Do you want more information? Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System