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: Are you looking for a particular type of food? Sentence2: I want a restaurant in the centre of town. Sentence3: welcome any day you want to know something Sentence4: Cote is a French Restaurant in the centre. Would you like to make a reservation? Sentence5: Train TR3447 leaves Kings Lynn at 09:11. Would you like to reserve a ticket? Sentence6: When would you like to travel? Sentence7: yes please. make a booking fr the same number of people. Sentence8: That is all I needed today. Sentence9: Yes! I need at table for 6 at 18:30 Wednesday. Sentence10: Okay, the booking was successful, the total fee is 58.8 GBP payable at the station. Reference number is : FZ6DQHQT . Anything else I can help you with? Sentence11: Here is your reference number 6HUYUYGS is there anything else I can do for you? Sentence12: Thursday morning at 9 am Sentence13: Yes, French food. Sentence14: Yes I need to find a train to Cambridge from Kings Lynn. Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System