You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Stephanie Wilson. I want to book a flight from ORD to PHX. Could you please help me?

ASSISTANT: Sure, can I know your preferable dates?

USER: My preferable dates are from 11/21 to 11/23.

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

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for helping me.

ASSISTANT: Thank you, have a good day.