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 have the departure time and price of train TR7329? Sentence2: How about a Spanish one? Sentence3: I am coming for birmingham new street, would like to arrive on wednesday at 10:45. Sentence4: Thank you, that's all I need. Sentence5: Okay. Your booking was successful. Your reference number is VJ7PEVYV . The table will be reserved for 15 minutes. Sentence6: I have two- la tasca, which is moderate, and la raza, which is cheap. Sentence7: I can put you on the TR7329, it will get you there by 10:23, how many tickets? Sentence8: Awesome. We're here if you need anything else. Thank you for using the Cambridge TownInfo centre. Have a great day. Sentence9: There are trains arriving in Cambridge daily! Where are you coming from, on what day, and at what time? Sentence10: pick one for me and book a table for 8 people at 18:30 on wednesday. Sentence11: Could you also tell me if there are any trains available arriving in cambridge that day? Sentence12: TR7329 Leaves at 07:40 and costs 75.10 pounds Sentence13: Iam sorry but I have nothing matching your needs right now. Sentence14: Yes, I was hoping for modern global food. Sentence15: We have many restaurants in the center of town. Do you have a certain cuisine or price range in mind? Sentence16: I'd like to find somewhere to eat in the centre. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User