You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Please help me in booking my flight ticket from DCA airport to EWR airport?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My travelling dates are 09/21 and 09/23.

ASSISTANT: Ok, please wait a moment I will check for the available flights.

USER: Ok, sure.

ASSISTANT: Ok, there is a flight 1027 in Delta airline matching your details with price 200. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: May I know your name to book the ticket?

USER: Virginia Phillips is my name.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: You are welcome, have a safe journey.