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: Sure! The phone number is 01223503333. Sentence2: Please give me information on the star rating and their number. Sentence3: I have your taxi booked. It will be a black Audi and the contact number is 07242534266. Will there be anything else? Sentence4: Perfect, could I have the phone number please? Sentence5: No,that is all. Thank you! Sentence6: Sure, I enjoy The Cambridge Arts Theatre at 6 Saint Edward's Passage. It is free, which is a plus. Sentence7: 01223292094 is their phone number. it has 4 stars. Sentence8: I'm just looking for a hotel called Leverton House. Sentence9: Yes, I am looking for a theatre. Possibly in the centre. Sentence10: Do they have free parking available? Sentence11: Can you also provide me with their address please? Sentence12: Yes, it does have free parking. Sentence13: That's an excellent 4 star hotel. Would you like to book a reservation? Sentence14: Sure. Their address is 732-734 newmarket road. Is there anything else I can help with? Sentence15: thank you goodbye Sentence16: I would like to book a taxi to commute between the two places. I want to leave the hotel by 05:45. Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User