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: No. That is what I need. Thank you! Sentence2: This looks complete, thank you for your help! Sentence3: You're welcome, have a great day. Sentence4: I apologize for the confusion. Currently, the taxi is set to depart Vue Cinema at 14:45 to go to Curry Garden. Does this need to be changed? Sentence5: Let's go with curry garden. I need the postcode, address, and phone number to that please. Sentence6: Vue to Curry. Thank you. Sentence7: There are 44 attractions you can view - is there a specific type of activity you're looking for? Sentence8: Hello, I am new to town and would like some ideas on whee I should go in the centre. Sentence9: I've booked your taxi - a grey toyota, contact number 07445683800 - but we should probably shore up the plans again. Is it Vue to Curry Garden or vice versa? Sentence10: I can recommend the Vue Cinema at the grafton centre, east road. Would you like me to book tickets? Sentence11: I am sorry, I couldn't find such a restaurant. Would you like to change your preferences, perhaps a different type of cuisine? Sentence12: The Vue Cinema is in the centre, but the entry fee is not listed. Perhaps you'd prefer All Saint's Church, which is renowned for its Architecture, and offers free admittance? Sentence13: I also need a taxi from Vue Cinema to Curry Garden. I need to leave Curry Garden by 14:45 Sentence14: I'm sorry, I don't have a listing of their entrance fee in my system. Sentence15: I apologize, but can we go back to finding a place to go but I would like something preferably in the centre of town and how much it costs? Sentence16: Thanks, I'm also looking for an expensive danish restaurant in the centre of town. Sentence17: There are five Indian restaurants near the centre in the expensive price range. They are: curry garden, the golden curry, saffron brasserie, panahar, and curry king. Sentence18: No thank you. i'm looking for an indian restaurant Sentence19: Curry Garden is located at 106 Regent Street City Centre. The postcode is cb21dp. The phone number is 01223302330. Sentence20: No. Can you recommend a place I should go? Sentence21: OK. What is the entrance fee? Sentence22: Great! Thank you for confirming that. Is there anything else I can do for you today? Question: Who has spoken the sentence 16? (A) User (B) System
Output: 


Answer: (A) User