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: Where are some places to go on the east side of town? Sentence2: I've heard the Camboats are fun, as well as the Funky Fun House. Do either of those interest you? Sentence3: I have confirmed your reservation at the cambridge chop house for Monday at 14:30. Your reference number is VA1DPB9K . Do you need any further assistance? Sentence4: We have 10 listings for the east area. What type of attraction are you interested in? Sentence5: Alright, I have a taxi booked to take you from Camboats to the Chop House. It will be a grey BMW, the contact number is 07699651220. Sentence6: You're welcome. Enjoy your stay! Sentence7: I'm looking for an expensive place to eat that serves British food, are there any in town? Sentence8: Okay, I think I'd like to do the Caamboats. Sentence9: What's the attraction type? I need a taxi to commute to the restaurant by my reserved time from the attraction, and will need the contact number and car type. Sentence10: The Camboats are boats, while the Funky Fun House is entertainment. Sentence11: Okay, I think that's all I need. Thanks for the help! Sentence12: No, but I need to book a table for 4 people at 14:30 on monday. Sentence13: Actually, I would like you to make a recommendation for me. Sentence14: There are 6 restaurants that meet that criteria. Do you have a preferred area? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User