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: There are four theaters showing up in the centre part of town. It looks like one of them is a arts theater. Do you want info? Sentence2: That time was successful. Your table will be reserved for 15 minutes. The reference number is: L85JERQH . Anything else today? Sentence3: I prefer the center of town Sentence4: I would also like a restaurant that is in the North area that serve Northern European food. Sentence5: Yes, can we try 17:00? Sentence6: Unfortunately, we don't seem to have any listings that match your criteria. Would you like to look for a different type of cuisine or a different area of the city? Sentence7: I do apologize, but they're all booked up. Would you like to try another day or time slot? Sentence8: Yes please! What's the postcode, fee, and number? Sentence9: OK go ahead and book a table for 3 people at 18:00 on thursday. Sentence10: The Cambridge Arts Theatre is located in 6 Saint Edward's Passage Postcode cb23pj, phone 01223503333. There isn't information about entrance fee. Sentence11: There are 5 theaters in the whole of Cambridge, do you have a specific area in mind? Sentence12: Yes, please. I'd like a taxi between the two places to arrive by 17:00. Sentence13: How about a Chinese food restaurant? Sentence14: Booking completed! Booked car type : grey bmw Contact number : 07714877467 is there anything else i can help you with? Sentence15: I would recommend Hakka. It is in the north area and I've heard it's great. Sentence16: I'd like to go to the theatre, can you tell me about what's available in Cambridge, please? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System