You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am William Garcia. I am planning to travelling from ORD to AUS, help me in booking?

ASSISTANT: I am here to help you, please help me with your preferable dates.

USER: My travelling dates are 03/04 to 03/06.

ASSISTANT: Please hold on a moment.

USER: Ok.

ASSISTANT: There is a flight-1001 on AA airlines, is it ok for you?

USER: Proceed for booking.

ASSISTANT: Ok, booking is done with your preferences.

USER: Thank you.

ASSISTANT: Welcome William Garcia.