You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Karen Miller.

ASSISTANT: How can I help you at this moment?

USER: I am planning to book a ticket from ATL to OAK. Can you please help me out to book a ticket for me?

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable dates?

USER: I would like to travel on Apr 22 and return back on Apr 24.

ASSISTANT: Is there any additional preferences do you have?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a Hawaiian airline flight available with connection limit 1 and fare is 100, shall I confirm this economy class flight?

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

ASSISTANT: Your flight ticket is booked successfully, flight number is 1022.

USER: Thank you for your service.

ASSISTANT: You are welcome Karen Miller.