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 have many options. what area would you like to be in ? Sentence2: I found 44 things. what about all saints church? Sentence3: There are 2 hotels in the west and one in the centre. the one in the centre is cheap and the other two are expensive. Sentence4: I really have to go now. I'm going to be late for work. Thanks for the help. Goodbye. Sentence5: I have the Allenbell, East area, cheap price and a guesthouse. Shall I book that? Sentence6: What type of attractions are in the centre? Sentence7: Well I would like a 4-star place with free wifi, if possible. Sentence8: that is all for now thatk you. Sentence9: Most of the accommodations in Cambridge are guesthouses, so I'm sure we can find something for you. Do you have a certain area or price range in mind? Sentence10: It doesn't matter what area. I'll need free wifi. I need to book for 5 people for 2 nights starting Monday. I'll need the reference number please. Sentence11: I have found 18 guesthouses that would work. Perhaps we can narrow this down. What part of town would you like to stay in? Sentence12: Can we make that a hotel instead? Sentence13: Yes go ahead and book it for 5 people and two nights starting this Monday. Sentence14: Not really. What's your recommendation? Sentence15: That sounds cool! Can I get their address, postcode, and entrance fee? Sentence16: Okay, thanks! Are they both 4-star? Sentence17: I'd also like to find a guesthouse to stay in. Sentence18: Booking was successful. Reference number is : BD7V5LON . Sentence19: enjoy your stay Sentence20: They are all 4 star. Do you have a price preference? Sentence21: thank you again Sentence22: you are welcome Sentence23: The address is jesus lane, the post code is cb58bs, and it's free to enter. Is there anything else? Sentence24: thanks for using our services Sentence25: I'm sorry, I haven't been clear. I am looking for a guesthouse, not a hotel. Is there a 4-star guesthouse with free wifi? Sentence26: How about price. Is there a certain range you want to stay in? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User