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 was able to book your taxi. It is a white Tesla and the contact number is 07335673174. Is there anything else you need today? Sentence2: The old schools is wonderful located at trinity lane. Sentence3: I'm looking for a place to dine in the centre in the moderate price range. Sentence4: No, what do you recommend? Sentence5: that is all i needed. i appreciate your help alot Sentence6: There are 44 attractions in the centre of town. Do you have particular type of attraction in mind? Sentence7: They have free entrance. Their phone number is 01223332320. Sentence8: I'm glad I was able to help you today. Hope you have a great day. Sentence9: Would you like a table at Cotto? Sentence10: Ok, will you be leaving from the restaurant or the college? And what time of day would you like this booking to be? Sentence11: Can you tell what attractions are near the restaurant? Sentence12: I also want a taxi two go between those two places. Sentence13: I want to leave the college by 07:00 so please go ahead and book that taxi for me Sentence14: Sure! The phone number for Cotto is 01223302010 and the address is 183 East Road, City Centre. Is there anything else I can help you with? Sentence15: What is the entrance fee and phone number? Sentence16: Yes, that would be fine. I don't need a book but can you give me the phone number and address for Cotto? Thanks Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User