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: Hello! I need a guesthouse to stay in, and I really need it to include free parking for my van. Can you help? Sentence2: The Byard Art is a museum in the south located at 14 King's Parade, postcode cb21sj. Phone number 01223464646 and best yet, it is free! Sentence3: Yes, in the south, please, and someplace with 4 stars. Sentence4: Perfect! I'll need a room for 5 people on thursday. We'll be staying for 3 nights. Sentence5: I sure can! There are 21 guesthouses in the city that include free parking. Is there a certain part of town you'd like to stay in? Sentence6: You are booked into aylesbray lodge guest house. Your reference number is 744K1A1E . Do you need help with anything else? Sentence7: Thanks, you've been extremely helpful. That's all I needed! Sentence8: I'm looking for a place to go. Are there any museums in town? Sentence9: Great! Let us know if we can assist you in the future. Have a great day! Sentence10: aylesbray lodge guest house is available and is 4 stars, would you like me to book this for you? Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User