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: Yes, can you please and send me the reference number? Sentence2: I need a taxi as well? Sentence3: I need to arrive by 05:15. Sentence4: I also need to know how many days and what day you will be staying. Sentence5: Can you also find a swimming pool I can visit? Sentence6: Alright a yellow volkswagen has been booked it will have you to the pool by 05:15. Your confirmation number is 07422806466. Is there anything else I can assist you with? Sentence7: I need to leave from autumn house to a swimming pool Sentence8: Where is your departure site and destination? Sentence9: Could I get the postcode and entrance fee for the one in the east? Sentence10: 5 days and I need postcode and entrance fee Sentence11: That will be all thank you Sentence12: Have a nice day and thank you for contacting us. Sentence13: Yes, the Autumn House has free parking! Would you like to make a reservation? Sentence14: The Autumn House hotel is a cheap guesthouse on the east side, located at 710 Newmarket Road. Sentence15: Right, as I states above, 5 days please. Sentence16: Ok. How many days will you be staying? Sentence17: I need to find the Autumn House Hotel. Sentence18: I'm afraid I don't have the entrance fee, but the postcode is cb58nt. Can I help with anything else? Sentence19: I would love to help. When would you like to arrive or leave by? Sentence20: There are 2 pools in the north, one in the center and one in the east. Which do you prefer? Sentence21: You are booked. Your reference number is XPCARI17 Sentence22: Do they have free parking there? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System