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 I have more information about the Cambridge Museum of Tech? What is their address? Sentence2: Can I also get a phone number and postcode for the museum? Sentence3: Done! Your reference number is SY4TL1W6 . Do you need anything else? Sentence4: No problem. Will there be anything else? Sentence5: Yes! I know we have 33 in town. Do you need to book one of them? Sentence6: Do you know much about hotels? Sentence7: That's all thank you for your help. Sentence8: The Cambridge Belfry is a cheap hotel in the west. Would you like their address? Sentence9: their phone number is 01223368650 and their postcode is cb58ld Sentence10: Yes! Cambridge Artworks, Cambridge Museum of Tech, Gallery at Twelve and Saint Barnabas Press Gallery. Any interist? Sentence11: No that is it. Thank you. Sentence12: How about a cheap 0 star hotel with free parking? Sentence13: I'm also looking for a museum in the east. Any recommendations? Sentence14: There are 10 cheap hotel's in town. Would you like to be in the North, South, East, West, or Central location? Sentence15: Unfortunately there are no hotels matching that criteria. Would you like for me to search for 2, 3 or even 4 star hotels? Sentence16: Address is the old pumping station, cheddars lane Sentence17: sorry, what is the address? Sentence18: Ok that works please make reservations for 3 people and 3 nights starting from saturday. Sentence19: Absolutely, their address is the old pumping station, cheddars lane. Is there anything else I can assist yo with today? Sentence20: No problem, glad to help. Have a great weekend. Sentence21: The el shaddai may be a good choice for you. Sentence22: Lets start over, my apologies. We were actually looking for a moderate priced hotel, with 0 stars and free parking, disregard everything said before this. Sentence23: Yes please,the cheapest one,thank you Sentence24: I would like to stay in the west please. Can you send me some info? Question: Who has spoken the sentence 18? (A) User (B) System
Output: 


Answer: (A) User