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: In the east please. Sentence2: Thank you. That is all that I need. Sentence3: Hi, I am planning a trip and am looking for a particular attraction. Sentence4: Yes please book for 1 person at 14:00 on monday. Sentence5: Can you try indian food please? Sentence6: What type of attraction are you looking for? Sentence7: Expensive Polunesian. Sentence8: Yes, I can. It is located in the centre area. Is there anything else I can answer for you? Sentence9: I also need a restaurant. Sentence10: I'll be glad to help you find one. What kind of restaurant do you have in mind and on what side of town? Sentence11: sitar tandoori is my all time favorite. can i book? Sentence12: I have booked you a reservation at the Sitar Tandoori for Monday at 14:00 for 1 person. The reference number is 5I0ZWPOT . Is that all today? Sentence13: It's called the ADC theatre. Can you tell me what area it's in? Sentence14: I'm sorry, I'm not showing any expensive polynesian restaurants in the east area of town. What about another type of cuisine or perhaps another area of town? Sentence15: Thank you for letting us assist you today! Enjoy your visit! Sentence16: We have 9 restaurants in the east. What kind of food would you like? Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User