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: Absolutely. What time would you like to it to pick you up? Sentence2: Is Curry Garden in the west? I kind of want something in that area. Sentence3: Pick the best one and provide the address, number and postcode. Sentence4: There are 5 colleges in that area. Three are free and two have an entrance fee. Clare Hall and Magdalene are free. Do those suit your needs? Sentence5: I have booked your taxi. Be expecting a red Tesla. Their phone number in case you need it is 07950107979. Anything else I can help with? Sentence6: What part of town is Tandoori Palance located in? Sentence7: That is located in the west. Is there anything else I can help you with? Sentence8: No, there is Tandoori Palance on 68 Histon Road Chesterton. Phone 0122350655. Sentence9: I am looking for a place to dine that serves Indian food. I would like a place in the expensive price range. Sentence10: Curry garden is available, would you like to try that? Sentence11: You're welcome, have a nice day. Sentence12: I recommend Clare Hall, a college in the west part of town. The phone number is 01223332360. The address is Herschel Rd, and postcode is cb39al. Sentence13: Yes, I am also Interested in finding a college to visit in the west. Can you help with that? Sentence14: I'll be leaving by 3:15. Sentence15: No, that will be all for today. Thank you. Sentence16: I need a taxi to get from the restaurant to the college, can you find one for me? Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User