You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am planning to travel from ATL to IAD, help me in booking  flight?

ASSISTANT: Sure, please share your journey dates?

USER: I like to travel on Aug 27 to 29.

ASSISTANT: Do you have any specifications?

USER: I prefer direct flight.

ASSISTANT: May I know your good name?

USER: I am Gregory Rodriguez.

ASSISTANT: Is there any class preferences?

USER: No.

ASSISTANT: We found a direct flight in United airlines, flight number is 1002 and price is 600 business class. Shall I proceed?

USER: Proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.