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: Can you help me find a restaurant in Cambridge called Loch Fyne? Sentence2: I think this would be a good time to end the dialogue. Goodbye. Sentence3: I have a lot of different attractions. Would you like a college or museum? Sentence4: Can you go ahead and make a reservation for 7 people on Wednesday, around 16:30 for me? Sentence5: I would like it to be in the West. Sentence6: Are you interested in things to do in the centre, or perhaps a different area? There is so much to do! Sentence7: Okay great! What is their phone number please? Sentence8: I sure can! Loch Fyne is an amazing seafood restaurant located in the centre of town. They are relatively expensive. Would you like any more info for them? Sentence9: That's all I need today. Thanks for all your help! Sentence10: I would suggest cafe jello gallery located at cafe jello gallery, 13 magdalene street. They have free entry. Sentence11: Yeah, anytime. I am happy I could assist. Sentence12: The phone number is 01223312112. Can I help with anything else? Sentence13: You're all set. Your reference number is D07SIPBF . Sentence14: The attraction should be in the west and should be in the type of museum. Sentence15: Thanks so much. I am also looking for places to go in town. Can you help me with that? Sentence16: Have a great day. Good Bye. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System