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: Please book it for 4 people at 18:30 on Saturday evening. Sentence2: The cheaper the better please Sentence3: That sounds wonderful! May I please have the address, phone number, and post code? Sentence4: Okay, booking was successful. The table will be reserved for 15 minutes. Your reference number is AA76LKSA . Sentence5: Yes, as I said zizzi cambridge is a very good restaurant. How many people would like me to book a table for and what time? Sentence6: Sure thing! The address is: pool way, whitehill road, off newmarket road. The phone number and postcode are 01223902088 and cb58nt. Sentence7: I have some what price range would you like? Sentence8: Abbey pool is available on the east. Sentence9: Hi there, I need a swimming pool. The kids want to swim! Sentence10: You're welcome. Have a wonderful day! Sentence11: they are 3 but i recommend zizzi cambridge. can i get you the address? Sentence12: Thanks! That's all I needed today. Goodbye! Sentence13: Are there any italian restaurants located in the centre? Sentence14: Can you suggest one? I need reservations for saturday. Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User