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: Alright you are booked and good to go! Here is your reference number V84DYHI3 . Is their anything else I can help you with? Sentence2: In the east, please. Sentence3: i'm looking for places to go in town. Sentence4: I would like a cheap place to stay at with 5 stars. Sentence5: I am not particular. Sentence6: You're welcome, have a great day! Sentence7: Yes, I want that from Sunday on for 4 nights. 3 people will be staying. Sentence8: How about Alexander Bed and Breakfast, in the Centre part of town? Sentence9: Are there any 4 star places I can stay? I also need free internet. Sentence10: Which area would you like to be in? Sentence11: Sure, I can help you with that. Were you looking for a specific part of town? Sentence12: I'm sorry, but there are no 5-star accommodations in all of Cambridge. Sentence13: Thank you that will be all I need today? Sentence14: Is there a certain type of place you are looking for? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User