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'd recommend jesus green outdoor pool. Would you like more information? Sentence2: Thanks. I hope your day is good too. Sentence3: Can you please provide me with the address, postcode and phone number? Sentence4: When is your arrival time? Sentence5: Lastly a taxi from the hotel to the pool please. Sentence6: I want to to leave the hotel by 10:30. Sentence7: thanks for inquiring with us and have a great day Sentence8: it sure is. thanks. Sentence9: Good. Glad to hear it. You can end this conversation now. I don't need anything else. Sentence10: The booking was successful. You have a reservation for 3 people, staying 4 nights a Acorn Guest House starting on Sunday. Your Reference number is : Z45I87LD . Sentence11: Thank you! I also need a swimming pool in the north area of Cambridge. Sentence12: Thank you for using our service. Sentence13: I am looking for information. Can you help me with a place to stay while I'm in town? Sentence14: That sounds perfect. I need a room for 3 people and 4 nights starting from sunday. Sentence15: Thanks. That is all for today. Sentence16: Do you have a arrival time in mind ? Sentence17: Your taxi have been booked for a black volvo and its contact number is 07055228719. Sentence18: The North part of town is where I want to go and include free parking and should have a star of 4 Sentence19: Sure! The address is between victoria road and the river, the postcode is cb43px, and the phone number is 01223302579. Sentence20: Okay, how about the Acorn Guest House? It's located on 154 chesterton road. Would you like me to make a reservation? Sentence21: I can help you. Which part of town? Sentence22: My arrival time will be 17:00. Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User