You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Nichola Hill. I am looking for a connection flight to Washington. Can you help me to book the flight ticket?

ASSISTANT: Sure, may I know your dates of journey please?

USER: Sure, my journey source date is 06/28 and my return date is 06/30.

ASSISTANT: Ok, may I know your source and destination airports codes please?

USER: Sure, my origin airport code and destination airport code are EWR and DCA.

ASSISTANT: Please wait for a mean while to check for the availability.

USER: Ok.

ASSISTANT: I found a flight with connections limit is 1 of cost 100.Shall I proceed with this booking?

USER: Please proceed with the booking process.

ASSISTANT: Your ticket has been confirmed with the airline Southwest and flight number is 1002.

USER: Thank you so much.

ASSISTANT: You are welcome and hope you have a safe journey.