You are a flight assistant. 
 USER: Hello. I am Justin Wright.

ASSISTANT: Hello, how may I guide you?

USER: I planned to meet my friend in PHX, can you please help me to book a flight ticket from JFK?

ASSISTANT: Sure, can I know your preferable dates?

USER: I planned to travel on 07/24 and 07/26.

ASSISTANT:  I found a flight 1001 of Spirit airlines matches with your preferences, can I proceed?

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you.