You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Benjamin Phillips here. Can you book me a ticket from DFW to HOU?

ASSISTANT: Sure, can I know your preferable dates?

USER: Ok, here are my preferred dates 10/13 and 10/15.

ASSISTANT: I found a flight 1012 of Spirit airlines matches with your preferences, can I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for the timely help.

ASSISTANT: Thank you.