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: Happy to help! That is a guest house in the north and is considered moderately priced. Sentence2: Hello, I'm planning my trip to cambridge, and I'm trying to find a hotel called alpha-milton guest house. Can you help? Sentence3: I also need to know about a restaurant called sala thong. Sentence4: Perfect. will you please give me the address, area, and phone number? Sentence5: Have a great day! Sentence6: Sure, it is a Thai restaurant in the west part of the city. It is expensive but very good. What would you like to know? Sentence7: I also need to know the price range, and area. Sentence8: Yes, their address is 63 milton road. It is in the North par of town. Their phone number is 01223311625. Sentence9: Nope, that's all I needed, thanks for the help. Sentence10: Their phone number is 01223323178. Can I help you with anything else? Sentence11: They are an expensive restaurant in the west area. Can I help you with anything else today? Sentence12: Can you give me the phone number for Sala Thong? Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User