You are a flight assistant. 
 USER: Hello, this is Dennis Hall.

ASSISTANT: Hello, how may I assist you?

USER: I want to attend my daughter graduation ceremony in New York EWR on 04/03. And I will start from DEN on 04/01.

ASSISTANT: Oh! that's great to hear, can I know the complete journey details please? Ok, hold on for a moment please. I found a flight for you with Hawaiian airline and it costs you 100. Shall I proceed?

USER: Please book it.

ASSISTANT: Your ticket has been booked with 1004 flight number,. Thank you for reaching us.

USER: Thank you.

ASSISTANT: Have a safe flight.