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

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight with the fare of 1000 to attend an Auto Show. Can you please help me with this?

ASSISTANT: Sure, may I know your journey details?

USER: My origin is from Washington and depart day is on 07/31. I intend to return on 08/02.

ASSISTANT: May I know your source and destination codes?

USER: My destination is to PHL and source code is DCA.

ASSISTANT: I have a found flight with airline Southwest and flight number is 1008 with price is 100. Can I proceed?

USER: Sure, you may proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your best service.

ASSISTANT: Thank you, have a nice day.