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: Your booking at the Alexander Bed and Breakfast for a party of 4 for Saturday for 6 days 5 nights was successful. Your Reference number is: X8LLFDAV . Anything else today? Sentence2: Really? Can you try again? A 4 star accommodation (type doesnt matter) that is cheap and in the centre with parking Sentence3: I'd love a recommendation. I'm looking to book a table for 4 at 17:30 on Saturday. Sentence4: Okay. I'll need that booked for 4 people and 5 nights beginning saturday. Please send a reference number. Sentence5: I am looking for some Italian food today. Sentence6: Yes, but the place will also need to have 4 stars and free parking. Sentence7: There are 9 Italian restaurants located in Centre, would you like a recommendation or do you have a particular price point in mind? Sentence8: I am sorry but I did not find one with your request, with free parking and 4 stars, can I help you find one in a different area? Sentence9: I have found one result, a guesthouse. It is alexander bed and breakfast. Sentence10: Thank you for using our services. Sentence11: Thanks. can you help me with a cheap place to stay also in the centre of town? Sentence12: Booking was successful. The table will be reserved for 15 minutes at the stazione restaurant and coffee bar. Address is Market Hill City Centre Reference number is : OHN98K8U . Sentence13: Thank you, but that is all I need for now. Sentence14: I have 2 cheap hotels that are cheap in the centre. Would you like to book one of them? Sentence15: Are any located in the Centre? Sentence16: We have several Italian restaurants in town! Do you have a certain area or price range in mind? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User