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 would like to arrive by 9:30. Sentence2: The price of the train is 16.60 pounds. Sentence3: You as well, goodbye. Sentence4: Yes, they have free parking as well as internet. Would you like to reserve a room? Sentence5: Sure, the train the arrives closest to that time is TR2715, arrives at 09:07. Shall I book it, if so how many riders are there? Sentence6: Actually, I don't need the room booked. I think we're all set here. Have a good day. Sentence7: Of course, what will the number of guest and the duration of your stay be? Sentence8: Just one. What is the price to book the train? Sentence9: Yes, thank you. Sentence10: I'm looking for a train going to Cambridge. Sentence11: Does the Hamilton Lodge include free parking? Sentence12: I have found the place you are looking for. Its address is 156 chesterton road, would you like me to book a reservation for you? Sentence13: There are over 1000 trains coming to Cambridge. Is there a particular day, time, or point of departure that you're interested in? Sentence14: I want to leave from london liverpool street on tuesday. Sentence15: What time would you like to arrive in Cambridge? Sentence16: Alright, Thanks. I'm also looking for a particular hotel, it's name is Hamilton Lodge. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System