You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Debra Gonzalez. I am planning to visit Alcatraz Island near SFO, could you please help me with booking a flight ticket from DTW?

ASSISTANT: Ok, can you please provide me your preferable dates?

USER: I would like to take off on 08/10 and return on 08/12.

ASSISTANT: There is a flight available on your requested dates from Southwest airlines with 1 connecting flight, which costing 100. Shall I book it for you?

USER: Please confirm the booking.

ASSISTANT: Flight 1015 has been booked successfully.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing our service, hope you have a safe journey.