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: There is one named the Nirala. WOuld you like me to book it for you? Sentence2: Sure. On what day, for how long, and for how many people? Sentence3: I have that taxi reserved look for a grey tesla with a contact number of 07741826519. Sentence4: Ok. There are two options. There is the aylesbray lodge guest house and the bridge guest house. Which one would you prefer? Sentence5: i have a variety. if you can specify the price to narrow down my options Sentence6: There are four is there an area you prefer to dine in? Sentence7: I need a place to stay in the south of town. Sentence8: Booking was successful. The table will be reserved for 15 minutes. Reference number is : ND2O59QO . Sentence9: We will arrive on Tuesday and stay for 4 nights. There will be 2 of us. Sentence10: No, that is all I need. Thank you so much. Sentence11: How about one in the north? Sentence12: Great, thank you! We will also want to try a moderately priced Indian restaurant. Are there restaurants like that in Cambridge? Sentence13: Yes, please! I need a table for 2 on Tuesday at 16:15? Sentence14: Booking was successful. and the Reference number is : 1JLMP6R2 . Sentence15: Sorry there are none in the south. Sentence16: Moderately priced would be great, and I really need it to have WiFi. Sentence17: I need a taxi to drop me at the restaurant by 16:15. It will pick me up at Bridge Guest House Sentence18: Can I help you with anything else today? Sentence19: Have a lovely day, goodbye. Sentence20: The same area as my hotel. Sentence21: I think I'd like Bridge Guest House please. Can you book it? Sentence22: that is great. thank you Question: Who has spoken the sentence 17? (A) User (B) System
Output: 


Answer: (B) System