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 need to get to Pizza Express for my 18:30 reservation, please. Sentence2: Great. Can I get the phone number for the cinema? Sentence3: Where will you need the taxi to pick you up? Sentence4: italian food, please Sentence5: I need to be picked up at Vue Cinema. Sentence6: We have 9 choices in the centre, any preference on price range? Sentence7: You have been most helpful setting this up. Thank you. Goodbye. Sentence8: We have quite a few Italian restaurants all over town. Is there a particular part of town you want to stick to? Sentence9: i also need a taxi. Sentence10: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 7LYLSH0V Sentence11: Yes, please book it for thursday at 18:30 for 4 people. I'll need the reference number as well please. Sentence12: What type of food would you like? Sentence13: Thank you for using our service today! Sentence14: Okay, you're all set with a taxi. It's going to be a black toyota and the contact number is 07976731692 Sentence15: Thanks. I also need to find a place to dine, please. Sentence16: And where will your destination be? Sentence17: pizza express would fit your needs, would you like to make a booking? Sentence18: The phone number for Vue Cinema is 08712240240 and they are in The Grafton Centre on East Road. Can I help you with anything else? Sentence19: Yes, I'd like one that was in the centra as well. Sentence20: Can you help me find a cinema in the centre? Sentence21: sure, there's a cineman called vue cinema Sentence22: Yes please; I'd greatly prefer the moderate price range as I'm on a bit of a budget. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System