You are a flight assistant. 
 USER: Hi. Timothy Green here.

ASSISTANT: Hello, which service are you seeking for today?

USER: Can you please aid me in booking a flight ticket to DFW from AUS?

ASSISTANT: Sure, we are ecstatic to help you.

USER: Thank you.

ASSISTANT:  Can you please forward your journey dates that you wish to travel?

USER: My preferred travel dates are from Jul 24 to Jul 26.

ASSISTANT: Do you need any specifications in connection?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you like to go with a economy class or business class?

USER: I would like to travel in business class.

ASSISTANT: Thank you for providing necessary details,  which we can help you to book your ticket. Please be on hold let you know the information.

USER: Ok.

ASSISTANT: Thank you for your time, we have found a Hawaiian airline, flight number-1002, connections-1 and ticket-200. Would you like me to book the ticket?

USER: If it is a business class, you can proceed.

ASSISTANT: Sorry there is no business class flight on your requested dates, the above details are economy class flight.

USER: Ok no problem. Thank you.

ASSISTANT: Thanks for contacting with us.