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 the tenpin is labelled as entertainment, the postcode is cb17dy. Can I help with anything else? Sentence2: No thank you. Thank you for everything! Sentence3: There is tenpin in the south that I recommend. Does that interest you? Sentence4: I am sorry but that was unsuccessful. Would you like to book another day or shorter stay? Sentence5: There are four hotels that match your criteria. Would you like to tell me more about your trip so I can help find the best one? Sentence6: Yes please. I need to book it for Monday for 4 guests staying 2 nights. Sentence7: Can you try booking it for just one night? If that works I will need the reference number, too. Sentence8: alpha-milton guest house looks like a good location would you like that? Sentence9: You're welcome! And you have a great day! Sentence10: That went through! Your reference number for your one night stay at the Alpha Milton Guest House is WKUZW2QI . Do you need anything else today? Sentence11: I am looking for a moderate price 3 star hotel. Can you help with that please? Sentence12: I'm looking to stay at a guesthouse please. Sentence13: Great! I am also looking to do something fun, what kind of entertainment is available in the south area? Sentence14: Sure, is it labelled as entertainment? I will just need the postcode. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User