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: I'm looking for a certain hotel called the cityroomz. Can you tell me more about it? Sentence2: Yes I need to find a restaurant serving Irish food in the center of town that is expensive. Sentence3: Aww, that's a bummer. I was really wanting Irish food. How about Indian food? I could go for some good curry. Sentence4: Okay, how about Curry Garden? Sentence5: Booking was successful. The table will be reserved for 15 minutes. Reference number is : AIAOBIM7 . Is there anything else? Sentence6: Reference number is : 3CJPO87U . Is there anything else you need? Sentence7: Your taxi reservation on a yellow Volvo is complete. You will be picked up at CityRoomz and dropped off at Curry Garden by 15:00. Will that be all today? Sentence8: Yes Cityroomz is located in the centre and is on sleeperz hotel, station road. Would you like me to book a reservation for you? Sentence9: Yes, thank you, that will be all. Sentence10: I also need a taxi to take me from the hotel to the restaurant. I need it to arrive by the booking time. Sentence11: I don't have anything meeting that criteria. Can I try something else? Sentence12: I hope you enjoy your trip! Goodbye. Sentence13: Yes thanks. There will be 2 of us arriving for 5 nights on Sunday. Sentence14: That sounds great. Can you book a table for 2 Sunday at 15:00? Sentence15: I booked you a 5 night stay for two, beginning on Friday. Enjoy your stay! Sentence16: I need the reference number please. Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System