You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Good Morning. How may I guide you?

USER: My name is Joseph Lee. I would like to book a ticket on dates from 04/06 to 04/08.

ASSISTANT: Sure, can I know your airport codes?

USER: I want to travel from LAX to LAX.

ASSISTANT: I found a flight 1015 of Spirit airlines matches with your preferences, can I proceed?

USER: Yes, you can proceed further with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you, have a good day.