You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket from DCA to CLT. Can you please book a direct flight ticket?

ASSISTANT: Sure, May I know your travelling dates?

USER: My journey dates are Feb 06 and Feb 08.

ASSISTANT: Do you have any preferences?

USER: No.

ASSISTANT: May I know your name?

USER: I am Angela Lopez.

ASSISTANT: You have a direct flight 1020 in Spirit airline and price 600, Shall I proceed?

USER: Go ahead.

ASSISTANT: Your ticket has been booked in business class.

USER: Thank you for your help.

ASSISTANT: Thank you.