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: Thank you for such great customer service. I am set for now. Goodbye. Sentence2: Can you book it for me and get a reference number ? Sentence3: i did not have any in mind Sentence4: I would recommend the Dojo Noodle Bar. Their phone number is 01223363471. Would you like to reserve a table? Sentence5: There is one Korean restaurant in the centre of town. Sentence6: Whenever is fine, just for me. Sentence7: I am sorry but there are no Korean restaurants in the cheap price range. Would you like to try another type of food or price range? Sentence8: To brighten up your Monday I have you booked at dojo noodle bar. Sentence9: I would like a restaurant in the cheap price range Sentence10: How about one that serves Asian Oriental food? Could I have the phone number? Sentence11: Yes, I am happy to book you at Dojo. What time would you like to book and for how many people in the party? Sentence12: The park is free it's called cherry hinton water play would you like the address? Sentence13: No, but are there any cheap Korean restaurants? Sentence14: What is the entrance fee for the parks? Sentence15: Hello, are there any attractions on the eastside? Sentence16: You are most welcome and thank you for contacting the Cambridge TownInfo Centre. Take care! Sentence17: I can book you at 10:00 in the morning if you like. Is there a particular day of the week you had in mind? Sentence18: Yes, there's entertainment, museums, boats, swimming pools, parks, multiple sports. Would you like information on a particular attraction? Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System