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: The grafton hotel restaurant sounds perfect for you. Would you like me to make a booking? Sentence2: Alright, I was successful in booking the Allenbell for Friday for 7 people at one night. Your reference code is 7D76ELJF . Is there anything else I can help you with? Sentence3: Great, let's try booking a room there. Sentence4: I'd actually like to find a guesthouse in the east instead. I'd still like it to have free wifi. Sentence5: Can you also find me an expensive British restaurant in the same area as the hotel? Sentence6: Thank you for using our system! Sentence7: What time on Friday would you like to reserve your table? Also, will it be the 7 people? Sentence8: Actually, no need to book. I just need the postcode, phone number and address for the Grafton Hotel Restaurant. Thanks. Sentence9: Yes please. Could you provide me with their postcode, phone number, and address as well? Sentence10: I would like to find a hotel in the east. Can you help me? Sentence11: Your booking is completed. Your car type is a blue bmw and contact number is 07515734744. May I help you with anything else? Sentence12: Sure, Express by holiday inn cambridge is located in the east. Free internet & parking 2 stars. Phone number is 01223866800 Sentence13: The price does not matter. I would like it to be booked for 7 people for 2 nights starting from Friday. Sentence14: No, I think that covers everything. Thanks so much for your help! Sentence15: I'd like to book a taxi from the hotel at 18:30 to the restaurant. Sentence16: It is located at Grafton Hotel 619 Newmarket Road Fen Ditton, postcode cb58pa. Their phone number is 01223241387. Can I assist you with anything else? Sentence17: I have about 6 different ones. Do you have a preference on price range? I have cheaper options and moderately priced ones. Sentence18: The booking was unsuccessful do you have another choice? Sentence19: Maybe just a one night stay then, try that. Sentence20: I can book you into the allenbell. It is a cheap price range with free wifi and parking. Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System