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: What are the names of the 2 hotels? Sentence2: Sure, it's a nightclub in the centre area. Would you like the phone number or address? Sentence3: Allenbell is in the East area. can I get you a booking there? Sentence4: I need one in the east area. Is one of them in the east. Sentence5: The address is 1-6 corn exchange street and the postcode is cb23qf. Is there anything else I can help you with? Sentence6: I need place to stay in Cambridge. Want it cheap with 4 stars. Sentence7: No, if you could get me the postcode for Allenbell that would be great. Sentence8: What type of hotel is it, and do they have free parking? Sentence9: Allenbell is a guesthouse with free parking. Would you like me to check availability for a certain day of the week? Sentence10: Allenbell and the Alexander bed and breakfast are the cheapest. Sentence11: Thanks, that's all I need today. You've been a great help. Goodbye! Sentence12: Cool. Do you happen to know anything about the Soul Tree nightclub? Sentence13: The post code is cb13js Sentence14: I need the postcode and address. Sentence15: I found 2 different 4 star hotels in that are cheaper than the others. Would you like to reserve that room for you? Sentence16: Thank you for your interest in Cambridge, we look forward to seeing you here! Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System