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: Can you help me find Arbury Lodge Guesthouse? Thanks. Sentence2: No, I just needed the information on that, I am all set. Sentence3: Can I get their address and postcode please? Sentence4: Sorry for digressing. I am still looking for an expensive Thai restaurant in the center of town. Can you check? Sentence5: Okay, is there anything else I can help you with? Sentence6: Certainly, from what location to what location? Sentence7: Sure, it's located at 82 arbury road. Do you want their phone number? Sentence8: Are you wanting a reservation for Bangkok City for thai? Sentence9: From the restaurant to the hotel. Sentence10: I would like to be picked up by 01:15 if at all possible, thanks. Sentence11: Unfortunately not. Is there another type of music you would like? Sentence12: No thank you. Sentence13: The arbury lodge guesthouse is a 4 star hotel that offers free parking. You can reach their front desk at 01223364319. Can I assist you with anything else? Sentence14: Ok, have a great day! Sentence15: Is there a cheaper bistro? Sentence16: What is the address and post code of the Arbury Lodge Guesthouse? Sentence17: Thank you. I would also like to book a taxi, please. Sentence18: Okay how about Thai food? Sentence19: Their postcode is cb23jx and their address is 24 Green Street City Centre. Sentence20: Yes I need to know whether they have free parking, star of the hotel, and phone number. Sentence21: Thanks for the help. Sentence22: Taxi has been books. It will be a blue tesla, contact number 07585251090. Have you made a decision on type of food you would like? Sentence23: I would rater have some chinese please. Sentence24: bangkok city fits your description. can we book for you? Sentence25: I can take care of that for you. What time would you like to be picked up? Sentence26: Yes, I'm also looking for a restaurant. I'd like it to serve expensive bistro food. Sentence27: The address is 82 arbury road postcode cb42je. Sentence28: There are none that serve that sort. Is there another kind you would like? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System