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: Yes, I also need a place to stay. Same price range as the restaurant and in the centre of town, please. Sentence2: Can I get one that has free parking? Sentence3: I booked a car for you, it's a white honda, the contact number is 07776292730. Did you want me to book you at the University Arms, or just the information? Sentence4: No thanks. I can book it myself later on. Thank you for all your help. Have a good day. Bye. Sentence5: Have a great day! Sentence6: I was able to reserve that for you. Your reference number is 3CZFPQPV . Is there anything else I can help you with? Sentence7: That sounds perfect. Can you make a reservation for me for 7 people at 3:15 pm on Sunday? I need the reference number, as well. Sentence8: Both offer free parking. The University Arms Hotel has 4 stars. Would you like me to book that for you? Sentence9: Tell me what hotel type it is? Sentence10: ok i found 2 hotels in that area gonville hotel and university arms hotel which one would you like Sentence11: Both of them are in the same category of "Hotel" Sentence12: I need a restaurant that serves Thai food, that is expensive and is in Cambridge please Sentence13: Thanks, I would also like a taxi. I'll need one from the hotel to make it to my dinner reservation. Sentence14: Bangkok City is located at 24 Green Street City Centre. Their number is 01223354382 Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System