You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: it should leave the restaurant by 14:00 Sentence2: Just one. Sentence3: I also need to find an Indian restaurant in the east. What ever you recommend. I need the postcode and address as well. Sentence4: I'd like to stick to the cheap price range please in the Centre. Sentence5: For how many, and when would you like to arrive? Sentence6: that will be fine. i also want a taxi to commute between the to places. Sentence7: yes, it has a four star rating. Sentence8: Okay have a great day and a great trip! Sentence9: Thank you so much. That's all I need today. Sentence10: How many people are in your party? Sentence11: I would suggest curry prince. Address is 451 Newmarket Road Fen Ditton and postcode cb58jj. Is there anything else I can assist you with? Sentence12: You're in luck, we have lots of places you can stay at! Do you have an area preference or a price range that you want to stick to? Sentence13: Booking was successful. your Reference number is : PV4MAEDL . is there anything else i can help you with? Sentence14: Awesome, please book it for 2 nights starting Tuesday Sentence15: I am looking for a place to stay. Sentence16: Does it have a star rating of 4? Sentence17: How about Alexander Bed and Breakfast? It is a cheap 4 star in centre. Sentence18: Booking was successful! Your car is a white ford and you can contact them at 97556660882 should you need to. Sentence19: What are your departure and arrival sites and times? Sentence20: Also please provide me with contact number and car type. Question: Who has spoken the sentence 3? (A) User (B) System
A:
Answer: (B) System