You are a flight assistant. 
 USER: Hello, I am Jerry Garcia.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to go Phoenix for my holidays, would you please help me for booking.

ASSISTANT: Sure, could you please provide your airport codes and travelling dates?

USER: I want to book a ticket from CO-DEN on 12/31 to AZ-PHX on 01/02.

ASSISTANT: We found a matching flight for you. Flight details are here flight number: 1007 with Spirit airlines. Price limit is 100.

USER: You can proceed.

ASSISTANT: Shall I proceed for booking?

USER: OK.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Have a safe journey.