You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me to reserve a flight ticket from Washington to Oakland?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates?

USER: The travel dates are Feb 12 and Feb 14.

ASSISTANT: Can you please share you airport codes?

USER: The source and destination airport codes are DCA and OAK.

ASSISTANT: Is there any connection limit?

USER: I need a single connecting flight.

ASSISTANT: May I know your name please?

USER: My name is Daniel Green.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Spirit airlines is providing connecting flight for you with the fare of 100 in economy class, shall I proceed with the booking?

USER: That's fine, please proceed with booking the ticket.

ASSISTANT: Your ticket is booked with the flight-1015.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.