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: Thank you for the info on a good museum to go to have a great day. Sentence2: Does it have free wifi? Sentence3: I was able to book your party of 8 into Finches Bed and Breakfast starting Sunday for 2 nights. Reference: ZBJ8XF6G . Is there anything more I can assist with today? Sentence4: Cambridge museum of technology looks like a good place to check out. Sentence5: Could you provide their postcode, area, and entrance fee please? Sentence6: Could you help me find an interesting museum? Sentence7: finches bed and breakfast is a guesthouse located in the west, it's fairly cheap too! Sentence8: Yes I need a taxi from the museum to the hotel. I want to leave by 4:15. Can you hook me up? Sentence9: Its postcode is cb58ld, it is in the east, and the entrance fee is 5 pounds. Sentence10: I was able to book your taxi from the museum back to finches. It will be a grey volvo and the contact number is 07903288738. Sentence11: I need a place to stay that includes free parking and should be in the west please. Sentence12: Have a great trip! Sentence13: You're welcome. Is there anything else I can help you with? Sentence14: Yes, it does. Sentence15: Great! I would like to make a booking for 8 people for 2 nights on Sunday. Sentence16: Thanks! That's all I needed help with today. Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User