You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: I'm looking for a hotel in the north. Sentence2: Would you like to book worth house? Sentence3: I also need a taxi to commute between the hotel and restaurant. Sentence4: No, I like the North. Perhaps there is a guesthouse that is 4 stars? Sentence5: The restaurant should be in the same area as the hotel and should be in the expensive price Sentence6: Can you help me find a restaurant as well? Sentence7: The phone number for Saigon City is 01223356555. The post code is cb41nl. Can I help you with anyone else? Sentence8: I would like to leave the hotel by 8:30. Sentence9: I do want it to be a 4-star place. Sentence10: Thank you for using Cambridge TownInfo centre. Have a great day. Sentence11: Thank you. I just need their phone number and postcode. Sentence12: can you book a room for tuesday, 5 nights, 5 people. Sentence13: When would you like to leave? Sentence14: Sorry, I don't have that information. There phone number is 01223316074. Sentence15: What is the price of the Worth House? Sentence16: Thank you for the booking of the taxi. That will be all foe now. Sentence17: I would prefer the cheap price range. Sentence18: I search for restaurants in the north, there are 9 options, any preferences? Sentence19: It looks like there aren't any 4 star hotels in the north. Would you like me to check another area? Sentence20: Sure, your booking for the Worth House for a 5 night stay has been confirmed. Your reference number is GWIK59YW . May I help with anything else? Sentence21: There are several options for guesthouses in the north with 4 stars, would you prefer moderate or cheap price range? Sentence22: I have many in those categories. How about trying Saigon City? Sentence23: We have two options in North available for you, do you have any additional criteria to choose between those or would you like a reccomendation? Sentence24: I booked you a yellow lexus and you can reach the driver at 07465015812. Would that be all today? Question: Who has spoken the sentence 22? (A) User (B) System
A:
Answer: (A) User