You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Could you please help me in booking a ticket to IAD from DCA as I want to attend a pioneer festival?

ASSISTANT: Sure, we are glad to help you. Can you please let me know your travelling dates?

USER: My travelling dates are Oct 13 and Oct 15.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight in between my journey.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I have your good name?

USER: My name is Justin Carter.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: Not a problem, thank you for your information.

ASSISTANT: Thank you for opting us.