You are a flight assistant. 
 USER: Hello, I am Andrew Carter.

ASSISTANT: Hello, how can I assist you today?

USER: I need to enjoy with my friends after completion of my graduation. So can you book a flight ticket to Las Vegas, NV - LAS?

ASSISTANT: Sure, may I know your origin airport code?

USER: Seattle, WA - SEA is my origin.

ASSISTANT: When do you planned your schedule dates?

USER: 08/06 and 08/08 are my travelling dates.

ASSISTANT: Do you need any other specifications?

USER: I need a connecting flight. 500 is my fare.

ASSISTANT: There is a flight found with Hawaiian airline of flight number 1019 and fare is 300. Shall I proceed for booking?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for booking my ticket.

ASSISTANT: Thanks for approaching us.