Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Alright, could you provide me with your departure and destination locations? Sentence2: Yes, I also need help biking a train. Sentence3: And where will you be going? Sentence4: I would need the phone number and food type. Sentence5: I'll be departing from Cambridge and should leave on Friday. Sentence6: I will book it for you,is there anything else I can do for you ? Sentence7: It will arrive at 15:27. Anything else for you today? Sentence8: I would like the phone number of a cheap restaurant in the centre of town. Sentence9: I am going to london liverpool street. I'd like to leave after 12:15. Sentence10: No, that's all. Thanks so much! Bye. Sentence11: And what time will it arrive? Sentence12: The travel time is 88 minutes, and tickets are 16.60 pounds Sentence13: I am looking for a restaurant in the center with a cheap price range Sentence14: Please just tell me the ticket price and travel time Sentence15: I have found 15 restaurants in that area within the cheap price range. Do you want a certain type of food? Sentence16: Please recommend a restaurant. I really do not care about the food type. Thank you. Sentence17: Rice house is a chinese restaurant and their phone number is 01223367755. Is there anything else I can assist you with today? Sentence18: TR4187 is the first departure after 12:15, leaving at 13:59. Would you like to book passage? Sentence19: The two choices are chinese and asian oriental,which one would you like? Sentence20: You're welcome. Have a great day! Question: Who has spoken the sentence 16? (A) User (B) System
Output:
Answer: (A) User