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: Great, what was the hotel that you decided on for me? Sentence2: I also am looking for a hotel with a 0 star rating and free parking. Sentence3: I, as a monopoly person am also a fan of free parking. Two guesthouse meet your needs, one is in the north, the other in the centre, any preferences? Sentence4: I'd recommend parkside pools in the centre. Their phone number is 01223446100. Will that be all? Sentence5: Can you suggest a nice place that has a swimmingpool? Sentence6: Would you like to narrow that down a bit? Sentence7: i'm looking for places to go in town Sentence8: No location isn't important. Please recommend one, and let me know the phone number. Sentence9: The Huntington Larriott Hotel , can I help with anything else ? Sentence10: There are three hotels matching your description. Do you have a preference regarding price range or area of location? Sentence11: Booking was successful. Reference number is : VRCMYSEO . Sentence12: We have four lovely pools. Is location important? Sentence13: I really prefer a hotel to a guesthouse. How about a hotel with free parking and a four star rating Sentence14: Nah, pick your favorite and book a room for me, please! We'll be arriving on Tuesday and staying 5 nights. There will be 6 of us. Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System