You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Stephen Allen, want to travel from DEN to OAK.

ASSISTANT: Sure, can I know your preferable dates?

USER: My travelling dates are from 09/19 to 09/21. Please check the flight with 1 connection.

ASSISTANT: I found a flight 1005 of Spirit airlines matches with your preferences, can I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you, have a good day.