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: Do all of them have free parking as well? Sentence2: It's just me. I am arriving Sunday and staying one night. Can you provide the phone number for the restaurant? Sentence3: I am looking for a place to stay. I needs to have moderately priced rooms and reside somewhere in the east part of town. Sentence4: The Rajmahal is fine. You said the phone number is 01223244955? Sentence5: That was a guesthouse, all 3 options are guesthouses. Sentence6: Thanks, you too. Sentence7: There are 3 places that fit your needs. A and B Guest House, Carolina Bed and Breakfast and Warkworth House. Would you like to book with any of these? Sentence8: The number for Rajmahal is 01223244955. Sentence9: My pleasure. Have a good day. Sentence10: Both Warkworth House and Carolina Bed and Breakfast have parking available. Shall I make a booking? Sentence11: Yes, there are 4 different Indian restaurants in that area. Sentence12: Ok, of those 4 is there one that is moderate priced? Sentence13: Curry Prince and Rajmahal are both moderately priced. Which one could you like? Sentence14: Do any of those places have free wifi? Sentence15: No, thank you, you've been a great help. Sentence16: Yes, that's the correct number for the restaurant. Is there anything else I can do for you? Sentence17: Is there one with free parking? Sentence18: All three have WiFi. Can I book one for you? Sentence19: Can you please book a one bedroom at Warkwoth house and I also am looking for a restaurant that serves indian food in the same area. Sentence20: Yes, warkworth, has free parking! Sentence21: Before we make your restaurant reservation, let's take care of the hotel. What day are you arriving, how many nights are you staying, and how many people? Sentence22: One person on Sunday at 17:00 please. Sentence23: You are welcome, goodbye! Sentence24: What date, number of days, and number of people would you like to book at Warkworth house? Sentence25: Are there any Indian restaurants around that hotel? Sentence26: I apologize. I seem to be a bit ahead of myself today. What kind of hotel was the Warkworth house? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System