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: We have many great hotels. Do you have a preference of star rating? Sentence2: Booking was successful. The table will be reserved for 15 minutes.Reference number is : 7LDNJZEE . anything else? Sentence3: no. it should free packing and located in the west Sentence4: I have booked your taxi. Be expecting a grey Tesla. Please call 07177768413 should you need to reach them. Sentence5: Sorry about that! how about a and be guest house? Sentence6: Yeah, please book me for 6 people, on saturday at 14:00 Sentence7: Of course, do you have a price range in mind? Sentence8: uhm, i definitely don't want to sleep in a hospital. Sentence9: Great. I also need a taxi to get me to the restaurant by the reservation time. Sentence10: Anything else today? Sentence11: The restaurant should be in the expensive price range Sentence12: The Cambridge Lodge restaurant is in the west. The address is Cambridge Lodge Hotel 139 Huntingdon Road City Centre. Is there anything else to help you? Sentence13: Glad to have helped! Sentence14: No that is it. Thank you. Sentence15: Thank you for your help. Sentence16: Okay. Also can you help me find a restaurant in the same area that serves European food. Sentence17: The star rating doesn't matter, thanks Sentence18: Picked up at the hotel and sent to the restaurant by the booking time please. Sentence19: If thats the case here is a nice hopital Addenbrookes Hospital Sentence20: Where do you want to be picked up? Sentence21: Could you help me with some information please? I am looking for a place to stay. Sentence22: Sure thing what price range are you looking for? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System