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 have train TR1955 arriving at 08:07 will that work for you? Sentence2: I will be traveling on Wednesday and need to arrive in Ely by 9:30. Sentence3: I booked 7 tickets for you on the TR1955. Your reference is JS5U3C0K . I will now help you find information on the allenbell Sentence4: I will be departing from Cambridge and I'll need 7 tickets total. Can I have the reference number after you book the tickets,please? Sentence5: I'd like to find a train please. Sentence6: Thank you. I will need a price range, whether or not they have free parking, and the area please. Sentence7: And where will you be departing from? Sentence8: OK, do you know what day and time you're traveling? Sentence9: No, that's all. Sentence10: Your welcome. Is has been a pleasure assisting you today. Goodbye Sentence11: It's a cheap guesthouse in the east side of town. They have free parking. Do you need anything else? Sentence12: Yes, please book that. Also, I am looking for a hotel named the allenbell. Can you find information on it for me? Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User