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 am looking for a attraction called whipple museum of the history of science. Sentence2: Thank you, enjoy your day Sentence3: I have booked a table for you at Clowns Cafe. The table will be reserved for 15 minutes. Your reference number is WYVYSLFF . How else can I help? Sentence4: That is everything, you were very helpful. Sentence5: Not at this time, could I just have the phone number of an expensive Italian restaurant? Sentence6: Booking completed! Booked car type : white toyota Contact number : 07915745196 Sentence7: I am interested in Italian food. However I just remembered, I need the phone number for Whipple Museum of History and Science please. Sentence8: There are a couple Italian restaurants in the area ranging from moderate to expensive. Would you like me to look them up for you and make a reservation? Sentence9: Please reserve the restaurant for Saturday at 16:30 for 3 people. Sentence10: I need a reservation fo 3 at 16.30 Sentence11: How much is admission? Sentence12: which day an time do i book? Sentence13: Yes, find me a cheap place to eat in the center Sentence14: They offer free admission. Is there any other information I can provide for you? Sentence15: That museum is in the centre of town on free school lane. Is there other information you are looking for? Sentence16: Their phone number is 01223330906. Sentence17: I need a taxi to take me from the whipple (whip whoop) to the restaurant. please make sure the taxi drops off by the reservation time at Clown Sentence18: What type of food are you interested in eating? Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System