You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me to book a flight from PHL to LAS?

ASSISTANT: Can I know your travelling dates?

USER: My travel dates are Nov 25 to 27.

ASSISTANT: Do you have airline specification?

USER: No, I don't have.

ASSISTANT: Is there any preference?

USER: I prefer a connecting flight.

ASSISTANT: Can I know your name?

USER: I am Charles Lee.

ASSISTANT: Found ticket with Hawaiian airlines for price 300 having flight number 1014.

USER: Please proceed.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.