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: There are 4 places to swim in town. Does the area matter? Sentence2: Parkside Pools is in the centre. That would be closest to Saffron Brasserie. Sentence3: Oh yes! Please I need a reservation for 5 people on Saturday at 18:00. I need a reference number too. Sentence4: Sure, the reference number is PSIDGHAC . Sentence5: The postcode is cb11ly. Sentence6: Saffron Brasserie is an expensive Indian restaurant in the centre. Would you like me to make reservations? Sentence7: Certainly. What time would you like the taxi to fetch you from the restaurant? Sentence8: I am also looking for places to go while in town. Do you have a swimming pool? Sentence9: Hi, I am looking for information on a restaurant it's called saffron brasserie. Sentence10: I would like a taxi to pick us up from the restaurant at 20:00. Can you please give me the contact number and car type of the taxi? Sentence11: You're welcome. Have a great day! Sentence12: No, that's it. Thank you for your service! Sentence13: Okay that will work, what is the postcode? Sentence14: Absolutely. You will be picked up at the restaurant by a black Lexus. Here is your contact number: 07511821304. Anything else I can help with? Sentence15: I'm not particular on the area; is there one near Saffron Brasserie? Sentence16: Great, thank you. Can you also help me with getting a taxi from the restaurant to the pool? Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System