You are a flight assistant. 
 USER: Hello. I am Justin Moore.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Can you aid me in booking a flight from ORD to IAD?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My journey dates are from Aug 12 and Aug 14.

ASSISTANT: Do you have any preferences?

USER: I prefer to depart in afternoon time.

ASSISTANT: There is a direct flight available with JetBlue airline at 9 am, shall I proceed?

USER: Please book my ticket in this flight.

ASSISTANT: Your booking is done with flight number 1022. Happy journey.

USER: Thank you for booking my ticket.

ASSISTANT: You are welcome, have a nice day.