You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Can you please reserve a flight ticket from DCA to EWR?

ASSISTANT: May I know your journey dates?

USER: Sure, my planned travelling dates are Jan, 26 and 28 respectively.

ASSISTANT: Let me know your connection limit?

USER: I would like to fly in a direct flight.

ASSISTANT: Any more requirements?

USER: No, thank you for asking.

ASSISTANT: Please help me with your name.

USER: Sure, my name is Richard Edwards.

ASSISTANT: Delta Airlines providing connecting flight in the economy class with fare 200, shall I proceed for booking?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been confirmed with flight number 1007.

USER: I mentioned that, I need a direct flight.

ASSISTANT: Sorry, there is no direct flight found with your required dates.

USER: Ok, not an issue.Thank you for your information.

ASSISTANT: Thank you.