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: No, I don't have a preference. I'd just like it to be expensive, please? Sentence2: i will go with the first. book for the same group of people and 2 nights starting from the same day Sentence3: Chiquito Restaurant Bar is very good. Would you like a table? Sentence4: Okay I am glad I could be of help. Thank you for calling. Sentence5: Yes. Shall I book it? Sentence6: Thanks have a nice day. Sentence7: Is that in the south area of town? Sentence8: I've made those reservations and your reference number are OZZGLCVB . Sentence9: Yes, could you please book me a table for 5 at 14:30 on Friday? Sentence10: i have 2 places. the huntingdon marriott hotel and the university arms hotel. which would you like? Sentence11: There are 3 places available. Do you have an area in mind? Sentence12: Hey, wait, just a second! I just remembered, I need a place to stay with 4 stars, preferably a hotel. Sentence13: Booking was successful. Reference number is : Y79YGBO7 . Anything else I can help with? Sentence14: Thanks, you too. Sentence15: Thank you. That's all I need today! Sentence16: I'm looking for a Mexican restaurant with expensive food. Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System