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: Before you do that, is it expensive and in the same area as the swimming pool you recommended? Sentence2: Okay. I need some information on an Italian Restaurant in the expensive range. Can you help me? Sentence3: My apologies. I do not show the entrance fee in my database, but if you call them, I'm sure they can give you that information. Sentence4: There is one, Parkside Pools, located at Gonvill Place. The phone number is 01223446100 and the postcode is cb11ly. Sentence5: yes, it is expensive and in the centre. Sentence6: Yes I need the restaurant to be in the centre. Sentence7: No thank you that will be all Sentence8: yes, shall i go ahead and reserve a table for you? Sentence9: Do they have a table available for 3 people at 11:00 on Monday? Sentence10: I'm looking for a swimmingpool attraction in the centre. Sentence11: I think Clowns Cafe would be perfect for you. Would you like me to book a reservation? Sentence12: There are about 5 different restaurants that have great italian food. Did you have a preference on the area of town? Sentence13: What is the entrance fee? Sentence14: Thank you, let me know if I can assist with anything else. Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System