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: Can I get travel time and price first, please? Sentence2: I would like to leave on Saturday from london liverpool street Sentence3: No, thank you. That's all I needed today. Sentence4: The trip is 50 minutes long and it is 13.20 pounds for a ticket. Sentence5: Ok thanks, Im ready to book. Sentence6: Thank you, goodbye. Sentence7: Okay, and which day would you like to travel? Sentence8: Yes, please. I need to know the price and travel time for that as well. Sentence9: Great, I have booked your ticket, your reference number is : 9LLWMNOM . May I help with anything further. Sentence10: TR7397 leaves from London Liverpool Street on Saturday at 05:39 and arrives in Cambridge at 07:07 with travel time of 88 minutes. Cost is 13.28 pounds. Shall I book this ticket? Sentence11: Please find a train that departs from Peterborough and arrives in Cambridge by 8:45. Sentence12: The TR3390 arrives Saturday at 8:38. Would you like me to book it for you? Sentence13: Train TR3390 is departing from peterborough to cambridge. Would you like me to look for a train departing from London Liverpool? Sentence14: I'm so sorry. I didn't mean to book yet. I won't need that reservation. Could you make sure that train TR3390 is departing from London Liverpool? Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System