You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me to book a flight ticket from IAH to DCA?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are Nov 16 to Nov 18.

ASSISTANT: Do you have any limits on number of connections?

USER: I need a single connection of flight.

ASSISTANT: Do you have any another specifications on your journey?

USER: I prefer economy class.

ASSISTANT: May I know your name for the booking purpose?

USER: Christopher Miller.

ASSISTANT: Delta Airlines providing a flight with the price 400 with single connection and it's in economy class only. Can I proceed for the booking?

USER: Ok, please proceed.

ASSISTANT: Your flight ticket reservation done with the flight number 1018.

USER: Thank you.

ASSISTANT: Thank you for choosing us, hope you are satisfied with the service.