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: Contact us anytime. Good bye. Sentence2: Booking was successful. Your reference number is ZP33SYC4 . Will that be all? Sentence3: The phone number is 01223324600. Perhaps they can inform you how much the entrance fee is. Sentence4: it is an expensive hotel in the centre. can i give you their contact? Sentence5: Ok if you read carefully, I also asked for the phone number please. Sentence6: The entrance fee is unknown. Sentence7: There is one nightclub, The Place, would you like their information? Sentence8: Actually, I am ready to book. Can you book the Gonville Hotel for 3 people for 5 nights, starting Thursday? Sentence9: i am looking for the gonville hotel Sentence10: Please provide the entrance fee and phone number for me Sentence11: I'm actually looking for something in the South. If there are no boat attractions there can you find me a nightclub? Sentence12: Thank you goodbye Sentence13: I would also like to find a boat attraction. Sentence14: There are four. One in the east, one in the north, and two in the centre. Which would you prefer? Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System