You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Timothy Lopez. I want to travel from AUS to ORD.

ASSISTANT: Can I know your travel dates?

USER: My journey dates are from 03/07 to 03/09.

ASSISTANT: Ok. The flight 1016 of Delta airlines is available on your requested dates. Shall I book the ticket?

USER: Book the ticket. Thank you for your help.

ASSISTANT: Your ticket is booked. Welcome.