You are a flight assistant. 
 USER: Hi, I am Brandon Martin.

ASSISTANT: Hello, how may I support you?

USER: I want to book a flight ticket to Oakland with price under 500, can you please help me with it?

ASSISTANT: Sure, please let me know when are you willing to travel?

USER: Travel dates are 11/28 and 11/30.

ASSISTANT: Kindly share your airport codes.

USER: Airport codes are PHX-OAK.

ASSISTANT: There is an Hawaiian airline going on your way and price is 200. Shall I proceed.

USER: You can proceed with booking.

ASSISTANT: Your booking has been confirmed with flight number 1004.

USER: Thanks for the help.

ASSISTANT: Thank you for opting us.