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: They serve European food then? Sentence2: It's an expensive european place in the centre at St. Michael's Church Trinity Street City Centre cb21su with phone 01223309147. Would you like to book a table? Sentence3: Yes michaelhouse cafe serves european food. Would you like any other information about this resturant? Sentence4: I managed to book you for a taxi at that time. It will be a white Audi and the contact number is 07947363494. Is there anything else? Sentence5: I actually have 4 different ones. If I may suggest one, the Mumford Theatre is new and really fun. Sentence6: Hi, I need help planning a trip to Cambridge. I'd like to go to the theatre while I'm in town, and I'll be in the city centre. Is there one there? Sentence7: Thanks. I also need information about a specific restaurant called michaelhouse cafe. What can you tell me about it? Sentence8: That sounds great, what's their phone number? Sentence9: That will be all, thank you and goodbye. Sentence10: Their number is 08451962320 Sentence11: Thank you for using our service. Have a great day. Goodbye. Sentence12: No, that's perfect, but I will need a taxi to go from Mumford Theatre, leaving by 12:00, to go to St. Michael's Church Trinity Street City. Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User