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'm so sorry, there must have been an error in our system. Clare Hall is a church in the west and is free to visit. Sentence2: Thank you! I'm also looking for an African restaurant, near Clare Hall. Can you help out with that? Sentence3: That's all for now. Thank you Sentence4: Thank you and enjoy your stay in Cambridge! Sentence5: I want expensive please. Sentence6: Okay, how about one that serves Indian food? Sentence7: I was able to book a table for 8 at 11:30 Saturday at India House. Your reference number is 157YLNUA . Is there anything else I can help you with? Sentence8: I do not see any churches in our system in that area. Do you have another attraction type that you would like to see? Sentence9: We have 6 options. Do you prefer expensive or moderate pricerange? Sentence10: Anything in the west will do. What's your favorite? Sentence11: I'm sorry, we don't have an African restaurants near Clare Hall. Sentence12: Do they have anything available at 11:30? Sentence13: My sister loves India House. That sounds great. Can you book a table for 8 at 12:30 on Saturday, please? Sentence14: What type of attraction or places are of interest for you? Sentence15: Churches could be interesting Sentence16: Where can I go that is located in the west in town? Sentence17: Thanks for the correction. Can you please get me their phone number? Sentence18: I am not able to make that booking. Is there something else I can help you with? Sentence19: their phone number is 01223332360 Sentence20: I have 5 options. I'd recommend cocum or india house. Does one of those sound good? Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User