You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you help me in booking a ticket from AUS to AUS for a round trip?

ASSISTANT: Sure, may I know your planned dates please?

USER: The journey dates are 11/20 and 11/22.

ASSISTANT: Please provide your name.

USER: My name is Dorothy Lewis.

ASSISTANT: Dorothy, I found a flight for you in Hawaiian airlines with price 200. Can I proceed?

USER: Sure, please book the ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1026.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.