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: Your all set a grey bmw will be picking you up the contact number is 07421029087, anything else today? Sentence2: Have a safe trip. Goodbye. Sentence3: adc theatre can be called at 01223300085. Their postcode is cb58as, and their address is park street. Anything else today? Sentence4: Sounds great. Can you reserve a table for 1 on Saturday at 13:00? Sentence5: That restaurant is locates in centre and is on 40270 king street in city centre. Their phone number is 01223505015. Sentence6: I will be leaving from the theatre. Sentence7: I will need to arrive at the restaurant by 13:00. Sentence8: I'd be happy to help with your request, what time would you like picked up? Sentence9: We have five excellent theatres in town, located in the centre and the south. Sentence10: Sure, i can book a taxi for you. Where would you be leaving from? Sentence11: 13:00 can i do anything else ? Sentence12: Yes, I also need a taxi to take me between the two places. Sentence13: No, that's all for today. Thanks for your help. Goodbye. Sentence14: Wonderful. Can you also help me find a cool place to visit in town, maybe a theatre? Sentence15: Hi there, I'm looking for information on Darry's Cookhouse and Wine Shop. Sentence16: Your Booking was successful. The table will be reserved for 15 minutes. Reference number is : A88AJSR3 . Sentence17: Can you give me the address, phone number and postcode for one in the centre area? Sentence18: what time will the taxi arrive? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System