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: yes, it is in the centre. Sentence2: I recommend the funky fun house it's located at 8 mercers row, mercers row industrial estate. The entrance fee is not in my database. Sentence3: not now. is it in the centre? Sentence4: Any area is fine, could you give me the address and entrance fee for a place you recommend? Sentence5: Thank you for the info that was all I needed. Sentence6: The postcode is cb21nt and the address is 59 Hills Road City Centre. Sentence7: Thank you for using our system today! Sentence8: There are 5 entertainment attractions in town. Do you need to travel to a specific area of Cambridge? Sentence9: I have one listing for ali baba. Would you like to make a booking? Sentence10: Hello I would like some sort of entertainment in town. Sentence11: Can I have the postcode and address please? Sentence12: Thank you for that information. I'd also like to dine at a moderately priced restaurant that serves Lebanese food please. Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User