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'm looking for places to go in town. The attractions should be in the centre. Sentence2: Thank you that was all I needed. Sentence3: What about archway house in the north? Sentence4: Yes, that is all. Goodbye. Sentence5: There are many things to do in a centre. Are you most interested in a museum, a church, a college, or something else? Sentence6: downing college is a college, it is free. Postcode: cb21dq. Sentence7: Thank you! Will you please book me a taxi between the two places, leaving at 01:45? Sentence8: I would like a guesthouse in the moderate price range that has free parking & wifi. Sentence9: That sounds nice, I need to arrive on sunday, I will have 8 total guests and we are staying for 4 nights. Sentence10: Book me for a college and entrance fee, attraction type, and postcode Sentence11: What preference would you have in relation to price, area or amenities. Sentence12: Thank you for using our services. Have all of your needs been met today? Sentence13: Your welcome, it was my pleasure. Have a great day. Goodbye Sentence14: I have booked your taxi. You will be awaiting a yellow toyota. If you need to contact the driver for any reason, the number is 07039085605. Sentence15: Booking was successful.Reference number is : VQ9MDB4E . is therebany other way i can be of help? Sentence16: I also am looking for a hotel in Cambridge. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System