You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: John Smith here. Could you please help me in booking a ticket from OAK to DCA.

ASSISTANT: Sure, I am here to help you. Can you please share your travel dates?

USER: My travel dates are as follows Apr 23 and Apr 25.

ASSISTANT: Do you have any connection limit?

USER: I would prefer a connecting flight.

ASSISTANT: May I know your airline preference?

USER: I have no other preferences?

ASSISTANT: Ok, let me know your name please?

USER: John Smith.

ASSISTANT: We found a flight from Spirit airlines with a ticket fare 100, shall I proceed with booking?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been confirmed with the flight-1008 in economy class.

USER: Thank you for the assistance.

ASSISTANT: Welcome, have a safe trip.