You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you today?

USER: Please book a ticket from New York, NY-JFK to Washington DC-DCA.

ASSISTANT: Ok, please mention your travel dates.

USER: Travel dates are from 04/19 to 04/21.

ASSISTANT: May I know your good name please?

USER: My name is Justin Adams.

ASSISTANT: There is a flight from UA airlines available for you with 1 connection.

USER: Please book a ticket.

ASSISTANT: Your ticket is booked in 1021 flight.

USER: Thank you.

ASSISTANT: You are welcome, have a safe journey.