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: Thank you. I am also going to need train information. Sentence2: No not at this time. I would just like the train ID for that train. Sentence3: Prezzo is located at 21 - 24 Northampton Road. The post code is cb30ad. You can reach them at 01799521260. Sentence4: That's all, Thank you so much. Sentence5: Good eve! I'm looking for a nice place to have a spot of afternoon tea. Sentence6: welcome and have a great day Sentence7: Have a nice day. Sentence8: I need to get the phone number, address, and postcode. Sentence9: Okay thank you for calling. Sentence10: Is there anything else I can help you with today? Sentence11: I'm sorry, I didn't get any matching results. Is there any other food type you would like me to look for? Sentence12: There is one Italian restaurant in that area. Sentence13: There are actually two it looks like: Prezzo and La Margherita. Sentence14: I would like to leave on Thursday. Sentence15: Of course, what train information may I get for you today? Sentence16: sorry we got none. Sentence17: Could you try Italian then? Sentence18: Can I get the information for Prezzo? Sentence19: What information can I get for you? Sentence20: No, I would like afternoon tea in the west. Sentence21: What day will you be traveling, please? Sentence22: The train id is TR1704. Sentence23: Okay thanks for calling. Sentence24: I have a train that departs at 10:11. Would you like to book it? Sentence25: What is the name? Sentence26: I need a train to leave after 9:30 from Kings Lynn departing for Cambridge on Thursday. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System