You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit Washington, please help me in booking a ticket from JFK to DCA.

ASSISTANT: Sure, may I know  your travelling dates?

USER: My planned travel dates are on May 26 and May 28.

ASSISTANT: May I know your name?

USER: My name is Ronald Edwards.

ASSISTANT: Can I know connection limit?

USER: I am fine with any flights.

ASSISTANT: Do you have any other preferences?

USER: I prefer an economy class.

ASSISTANT: We found a flight of Jetblue airline, flight number 1027 with the fare of 100.

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.