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: Okay, can I have the postcode, address, and phone number. Sentence2: How about prezzo, it is in the west? There are also Pizza Express's in the centre and Pizza Huts in the south and east. Sentence3: Area does not matter. Sentence4: There are several options to choose from. Do you have a specific location or pricerange you would like? Sentence5: A white BMW will pick you up by 1:30 from Arbury Lodge Guesthouse and take you to aprezzo. Their Contact number is. 07237218579. Anything else i can help with today? Sentence6: You're welcome and enjoy your stay. Sentence7: Thank You that is all. Have a nice day Sentence8: Thank you. I would also love some help finding a moderately priced italian restaurant. Sentence9: What time would you like to leave? Sentence10: Help me find a place to stay that has free parking and 4 stars. Sentence11: What area would you like to be in? Sentence12: No specific price or location. I'd like it to include free wifi, though. Sentence13: I Would like to get a taxi to the place as well. Sentence14: Absolutely, the address is 21 - 24 Northampton Road, and the postal code is cb30ad. Sentence15: The Prezzo sounds good. Can you tell me the address and postcode please? Sentence16: I want to leave the restaurant by 01:30 to go to the hotel. Please give me contact info and car type Sentence17: I'd recommend arbury lodge guesthouse. It's a guesthouse in the north, moderately priced. Sentence18: The address is 82 arbury, post code cb42je. The phone number is 01223364319. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System