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: Where are some places in town around Cambridge College? Sentence2: Reservations for 7 at the Thanh Binh has been made for Sunday at 13:30. The address is 17 Magdalene Street City Centre postcode is CB30af. Sentence3: Could I actually just book a table for 7 there? Sentence4: Yes I have. It's a great inexpensive restaurant. Would you like their information? Sentence5: I am also looking for a particular restaurant. Have you heard of Thanh Binh? Sentence6: I'd like to dine at 13:30 on Sunday please. Sentence7: I sure can. Corpus Christi is one of the most popular ones. Sentence8: I don't have a preference. Can you suggest something? Sentence9: A college type of attraction. Sentence10: That sounds great! May I have the address? Also, what part of town is it located in? Sentence11: I found several college type attractions. Do you prefer a certain area of town? Sentence12: Please specify the type of attraction you're interested in. Sentence13: The address is King's Parade and it is in the Centre of town. Is there anything else you need to know? Sentence14: Sure thing. I will work on getting this booked for you. Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System