You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Charles Evans.

ASSISTANT: How can I help you today?

USER: Can you please book a flight ticket from AUS to LAS locations?

ASSISTANT: Ok, please can I know the dates of journey you prefer?

USER: My travelling dates are on 12/23 and 12/25.

ASSISTANT: There is a connecting flight and the price 200. Can I book it?

USER: Please proceed with it.

ASSISTANT: Ok, it is booked. The flight number is 1008.

USER: Thank you so much.

ASSISTANT: Thank you for choosing our agency.