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: The cambridge chop house sounds good. Could you book it for 5 people at 19:45 on monday? Sentence2: If there is anything else I can help with you please call back. Thank you and have a great day! Goodbye! Sentence3: Yes, actually. Is there one that is expensive? Sentence4: You're booked and the reference number is BQT142V9 . The table will be reserved for 15 minutes. Is there anything else you need? Sentence5: Can you help me find a place to eat located in the centre that serves british food? Sentence6: Yes, can you try the same for 18:45 instead? Sentence7: Unfortunately, there is no availability for your party at that time. Would you like to book a different time slot or day? Sentence8: they are fitbillies restaurant, the cambridge chop house and the midsummer house restaurant Sentence9: There are 7 places in the centre area that serve British cuisine, do you have a preference on price range? Sentence10: Thank you and Goodbye Sentence11: What are their names? I need to choose one I can book a table at. Sentence12: Yes, I've found three all in the city centre. Is there one of these that you would prefer? Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System