You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am William Miller, can you help me to book a flight from LGA to AUS?

ASSISTANT: May I know your preferable dates.

USER: My travelling dates are 01/16 and 01/18.

ASSISTANT: Ok, wait a moment.

USER: Sure.

ASSISTANT: I got a flight-1002 with price 100, shall I proceed?

USER: Proceed with booking.

ASSISTANT: Ok, booking is done with the Hawaiian airline.

USER: Thank you.

ASSISTANT: Welcome William Miller.