You are a flight assistant. 
 USER: Hello, I am Jessica Hill.

ASSISTANT: Hello, how can I serve you the best today?

USER: I am planning to celebrate a Flower festival in Oakland, CA - OAK, so help me in booking a flight ticket from Las Vegas, NV - LAS.

ASSISTANT: Sure, let me know your budget for flight ticket.

USER: My budget is 500.

ASSISTANT: Kindly mention your planned dates?

USER: My depart is on 11/26, return is on 11/28.

ASSISTANT: Please wait for a while, I will check with the airlines and revert to you.

USER: Sure.

ASSISTANT: Thanks for being patience. We are glad to inform you that there is a flight found with your matching details. Flight number :1009, airline :Hawaiian and price is 500.

USER: You can proceed to booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for opting us.