You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Cynthia Phillips. I have to attend a sports event in Dallas, so I need your help for booking a flight ticket from TX-AUS  to NY-LGA.

ASSISTANT: May I know your travel dates? Give me a minute, let me check the details.

USER: My travelling dates are 10/20 and 10/22.

ASSISTANT: The flight 1022 of Hawaiian airlines is available on your requested dates. Shall I book the ticket?

USER: Please book this flight ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Welcome.