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: Yes, I am going for luxorious today. I need to find an expensive restaurant in the centre. Sentence2: Sure. Train TR5476 leaves Cambridge at 18:40 and arrives at Stansted Airport at 19:08. Would you like me to book that for you? Sentence3: What is the travel time for that one? Sentence4: Sounds good. Can you reserve me a table for 8 people on Wednesday at 13:15 please? Sentence5: Your reservation at Clowns Cafe for this wednesday at 13:15 for 8 people was successful. Your Reference number is : XLDDAGQJ . Sentence6: Anything else you need today? Sentence7: I'd prefer Italian food please. Sentence8: I need a train to stansted airport on Thursday that arrives by 19:30. Sentence9: Thank you very much! Sentence10: d recommend clowns cafe Sentence11: There are a lot to chose from what type of food do you want to eat? Sentence12: No, I was hoping for a recommendation. Sentence13: We have 4 matches in the centre area of the town. Do you know the name of the place by any chance? Sentence14: nope you have been great! Sentence15: It's 28 minutes. It's very fast. Sentence16: Thank you. Enjoy your dining experience and don't hesitate to call again. Have a great day! Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User