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 is a train leaving at 19:12. Sentence2: No, that will be all today. Thank you. Sentence3: It doesn't matter. You make a suggestion and provide the entrance fee, phone number, and area Sentence4: ADC is in the centre, 01223300085. The entrance fee is not available at the time. Is there anything else? Sentence5: I'm leaving from Broxburne on Friday. Sentence6: Sure. Where are you departing from and what day would you like to travel? Sentence7: Yes, what area is this located in? I may give them a call today and ask about the entrance fee. Sentence8: Great, can I get 2 tickets on that train? Sentence9: I need a train that leaves at 18:45 and goes to Cambridge. Sentence10: Thanks for using Cambridge TownInfo. Have a great day. Sentence11: It is located in the centre. Is there anything else I can help you with? Sentence12: Yes I am looking for a place to go maybe a theatre. Sentence13: I have made those reservations. Your reference number is F2A9AC1K . Can I help you with anything else? Sentence14: Sure there are a few. Would you like it to be in a specific area of town? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System