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'm open to any kind of food. I'm looking for something in the centre and on the expensive side. Sentence2: You are very welcome. Is there anything else I can assist you with? Sentence3: I'd also like to find somewhere to go in town. Sentence4: Okay, thank you so much for your help. Sentence5: That sounds lovely. There will be 2 of us at 16:45 on Tuesday please. Sentence6: You would love cineworld cinema Sentence7: We have several attractions to choose from, do you have a preference as to the type? Sentence8: We can narrow down our selection for you if we know the Restaurant chain and the kind of Food you prefer? Sentence9: I'm looking for an expensive restaurant in the centre of town. Sentence10: You are welcome enjoy. Sentence11: There are a lot of good choices like that. I can recommend The Cambridge Chop House if British food appeals to you. Would you like me to book you a table? Sentence12: That is all for now. Thank you for your help. Sentence13: Is there a cinema? Sentence14: The postcode for cineworld cinema is cb17dy Sentence15: I was able to get a reservation at that time. Your reference number for your reservation is RC16KLU4 . Is there anything else I can help you with? Sentence16: Thank you, I just need their postal code for now and I can take it from there. Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System