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: I apologize. I have doubled checked and there is no entertainment venues in the centre. The entertainment venues that I do have are located in the east, south and west. Sentence2: I would also line places to go that is entertainment and should be in the centre of town. Sentence3: I would like to take a train from Cambridge to Kings Lynn. Sentence4: Train 8665 leaves Cambridge at 17:11 and arrives in Kings lynn at 17:58. How does that sound? Sentence5: I have booked that for you! The reference number is C63RMSDC and you will owe 31.36 at the station. Do you need anything else? Sentence6: I'm quite sure that there are colleges in the centre of town. Can you ask a manager to help you look? Sentence7: Leave after 17:00 on Sunday. Sentence8: What day and time? Sentence9: Great. Please book it for 4 people. Sentence10: Yes there is. I saw it in the pamphlet. Check again please. Sentence11: Okay there is the Christ's College located at Saint Andrew's Street and it's free. Also Corpus Christi College, King's Parade cost 2 pounds. Sentence12: I'm sorry, there are no such places. Can I change your search criteria? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User