You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me to book a ticket from IAD to OAK?

ASSISTANT: May I know your travel dates?

USER: I want to start on Feb 22 and return on Feb 24.

ASSISTANT: Do you have any connecting preferences?

USER: I would prefer a connecting flight.

ASSISTANT: Do you have any timing preferences?

USER: No.

ASSISTANT: May I know your name please?

USER: Nicholas Hernandez here.

ASSISTANT: Is there any other concern?

USER: No.

ASSISTANT: JetBlue airlines is providing the connecting flight on this route and the fare of 100.

USER: You can proceed to booking.

ASSISTANT: Your reservation has been booked with flight 1011.

USER: Thank you.

ASSISTANT: Thank you.