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: Alright, where would you like the taxi to pick you up at and your destination? Sentence2: I would suggest meghna then would you like the address? Sentence3: No address but would like to make a booking for 8 people at 17:45 on wednesday. Sentence4: we dont have any in that area. Sentence5: that is all i need for now. have a great day Sentence6: Have a great, Good-bye. Sentence7: Your booking was successful. The table will be reserved for 15 minutes. Your reference number is : LS1ZMCR8 . Is there anything I can do to help you today? Sentence8: The Museum of Archaeology and Anthropology is always a good choice. They are located at University of Cambridge, Downing Strand and admission is free. The phone number is 01223333516. Sentence9: I also would like to see entertainment in the center area. Sentence10: i booked your taxi. it will be a blue toyota. their phone number is 07424729044. Sentence11: I have 4 places that meet that criteria. Do you have a preference in the area. Sentence12: Yes, I'd like the address, phone number and entrance fee for one of the museums, please. Sentence13: I am looking for a place to dine in the moderate price range that serves indian food. Sentence14: I have 11. Would you like more info on one? Sentence15: I don't really have a preference in the area. Sentence16: I'd like to go from the museum to the restaurant, and make sure I get there for the reservation, please. Sentence17: If there is no such attraction, how about one that is in the type of museum? Sentence18: Thanks! I also need a taxi to commute between the two places. Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System