You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am looking for a flight from IAD to OAK, can you please help me in booking?

ASSISTANT: Sure, please provide your travel dates.

USER: I am planning to start my journey on Apr 02 and return back on Apr 04.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: Sure, my name is Jonathan Jackson.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Flight-1010 is available in Hawaiian airlines with single connection and the ticket fare is 100. Can I proceed?

USER: Please proceed.

ASSISTANT: Your booking is confirmed.

USER: Thank you for booking.