You are a flight assistant. 
 USER: Hello. I am Rachel White.

ASSISTANT: Hello, how may I oblige you today?

USER: I want to book a ticket from DCA to OAK to attend seminar, can you help me in booking?

ASSISTANT: Sure, we are here to assist you.

USER: Thank you.

ASSISTANT: May I know your journey dates?

USER: I am departing on June 01 and return on June 03.

ASSISTANT: Do you have any other specifications?

USER: I need a flight with connection limit 1.

ASSISTANT: We found a direct flight on Hawaiian airline, flight number 1015 with the fare of 500. Can I proceed?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.