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: The entrance fee is free. Sentence2: Free is the best price! I'll probably be hungry after the museum. Are there any moderately priced Italian restaurants around? Sentence3: Thank you using Cambridge TownInfo centre today! Enjoy the rest of your day. Sentence4: Of course. The contact number is 07172397913. Can I help with anything else? Sentence5: It has been booked, your reference number is QFN3A3E9 . Sentence6: Thank you for your assistance. Sentence7: What is the entrance fee for the contemporary art museum? Sentence8: Could you book a table for me? I need a reservation for 3 people at 11:30 on Wednesday. Sentence9: Hello! I'm looking for some entertainment in the centre please! Sentence10: Can I please have the contact number for the taxi company? Sentence11: Pizza Express is a moderately priced restaurant in the centre of town. Would you like more information on it or to are you interested in booking a table? Sentence12: There are 11 museums listed in the centre area. Cambridge contemporary art and castle galleries are two that are listed. Would you like more information on one of these? Sentence13: Could you please provide me with some information on an attraction that is in he type of museum? Sentence14: There is a movie theatre, a concert hall, nightclubs, and museums. What would you like? Sentence15: Great! I'll need a taxi that will take me from the museum to the restaurant by 11:30. Can you book one for me? Sentence16: Its booked! Its a red Volvo Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User