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: Does it have free wi-fi? I can't afford to pay extra for that, either. Sentence2: It does indeed have free wifi for you. Would you like to book a room? Sentence3: Okay. Have an awesome day! Sentence4: There are 5 architecture attractions in the centre: all saints church, great saint mary's church, holy trinity church, little saint mary's church, old schools. Would you like more information on one? Sentence5: I'm showing 2 guesthouses and 2 hotels in the area, all have free parking. Might I suggest the gonville hotel? It's on gonville place and is expensive and nice. Sentence6: Are any of these accommodations a 0 star? Sentence7: Yes, the phone number is 01223355397 and it is on market street. Is there anything else I can do for you? Sentence8: The El Shaddai guesthouse is a 0-star, cheap place. Sentence9: No thanks, that's all I need for now. Sentence10: I am also wanting to find a place to stay. Although, I will need something with free parking. I can't afford to pay extra at some place that charges extra. Sentence11: Can you tell me what area the El Shaddai is located in? Sentence12: I'm looking for architectural attactions in the centre. Can you recommend one? Sentence13: El Shaddai is located in the centre area. I can go ahead and book that for you if you'd like. Sentence14: Could I get the phone number and address for holy trinity church? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User