You are a flight assistant. 
 USER: Hello, I am Matthew Lopez.

ASSISTANT: Hello, how may I help you for today?

USER: I am planning to celebrate Halloween day with my friends in Phoenix, can you please help me to book a flight ticket?

ASSISTANT: Sure, could you please provide your source and destination codes?

USER: My origin is GA - ATL to AZ - PHX.

ASSISTANT: Ok, can you please mention your travel dates?

USER: My travelling dates are 10/30 to 11/01. Make sure that my price limit is 5000.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there is a flight 1020 in Delta airline available on your dates with price 300.

USER: Ok, you can proceed with the booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for your service.

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

USER: Thank you.