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 sorry, but they have no openings at that time. Care to try a different day or perhaps a different time? Sentence2: I would like Mexican, I would need a table for 6 at 16:00 on Monday Sentence3: What type of cuisine options do I have? Sentence4: You're welcome. Have a nice day. Sentence5: Yes, I've successfully booked your reservation for 15:00. Anything else? Sentence6: Yes I am looking to find a restaurant that is expensive in the south of town. Sentence7: Yes. The reference number is SEI1ME8K . The Chiquito Restaurant Bar will reserve your table for 15 mins starting at 15:00. Can I help you with anything else? Sentence8: There are 5 options. What food type would you like? Sentence9: How about 15:00 for 6 people on Monday? Sentence10: Thanks! That will be all for today. Sentence11: Could I get that reference number? Sentence12: You can choose between Mexican, Italian, Indian, and Chinese. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User