You are a flight assistant. 
 USER: Hello, I am Lisa Perez.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I want to book a flight ticket with price under 500. Could you help me with it?

ASSISTANT: Ok, could you please let me know your travel dates to book your ticket?

USER: My travel dates are from 11/28 to 12/30.

ASSISTANT: Ok, please mention your journey codes.

USER: Journey codes are DCA-JFK.

ASSISTANT: Ok, there is a flight 1012 in Hawaiian airline matching your dates having price 100. Shall I proceed with your booking?

USER: Thanks for the details, you can proceed with booking.

ASSISTANT: Ok, your booking is confirmed.

USER: Thank you.

ASSISTANT: Thanks for reaching us. Have a safe journey!.