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: I have your made your reservation. Ref# is E7VPA79P . They will hold the table for you for 15 minutes. Is there anything else that I can be of assistance? Sentence2: That is everything, thank you so much for your assistance. Sentence3: Book for 8 people on Friday at 17:15. Sentence4: Yes, I'd also like to check out a cool place in the centre area. Sentence5: I want Turkish at a moderate price. Sentence6: That sounds great. Can you tell me a phone number I can reach them at, and also the entrance fee? Sentence7: The Broughton House Gallery meets your criteria, would that work? Sentence8: I am getting the booking started for you now, can you give me the day and number of people please? Sentence9: We have a lot of great restaurants! What kind of food do you prefer, and what price range would you like for me to check? Sentence10: The Efes is fine. I need a table for at 17:15. I will also need the reference number. Sentence11: You're welcome and enjoy your stay. Sentence12: How about multiple sports? Sentence13: The phone number is 01223314960 and the entrance fee is free. Sentence14: I have found 2. The anatolia or efes restaurant. Would you like a booking made today? Sentence15: There is a lot to do in the centre. Are you looking for a particular type of attraction? Sentence16: There is nothing in the centre of town for sports. Would you like to try something else? Sentence17: I am coming to Cambridge and am so excited to see some local tourist attractions. I just need help finding a restaurant to eat at while there. Sentence18: What about a museum? Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User