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: Yes, please. I'll need their phone number and address please. Sentence2: I am looking for a train leaving from Cambridge. Sentence3: No. Could you just tell me the travel time and ticket price? Sentence4: What is the postcode, please? Sentence5: No, I think that covers it. Thanks so much for your help. Bye! Sentence6: Sure train TR7678 leaves at 12:21 and arrives at 14:06. That is a total time of 105 minutes. The cost is 30.24 pounds. Sentence7: There are 2 parks in the south. Would you like me to recommend one for you? Sentence8: Glad I could be of help. Have a great day! Goodbye. Sentence9: I need to leave for leicester on Sunday after 11:45. Sentence10: The wandlebury county park's phone number is 01223243830 and the address is wandlebury ring, gog magog hills, babraham Sentence11: I can certainly help you with that. Where are you traveling to and do you have a certain departure and arrival time? Sentence12: Train TR7678 would work for you, would you like me to book you passage? Sentence13: Thanks! i'm looking for places in the south that are parks Sentence14: The postcode for Sheep's Green and Lammas Land Park Fen Causeway is cb22ad. Wandlebury Country Park is cb223ae. Is there anything else I can assist you with? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System