You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: My name is Charles Roberts.

ASSISTANT:  Charles Roberts. How can I help you?

USER: I need to book a flight ticket from ATL to AUS. Please help me in booking a flight ticket.

ASSISTANT: May I know the itinerary travel dates?

USER: My journey dates are from Jan, 04 to Jan, 06.

ASSISTANT: Do you have any class preferences?

USER: No, I am comfortable with any class.

ASSISTANT: Would you like to board on direct or connecting flight.

USER: I need a connecting flight.

ASSISTANT: Would you like any airline preferences?

USER: No.

ASSISTANT: Is there any time concern?

USER: Yes, I need to depart in the afternoon.

ASSISTANT: Are there any other preferences?

USER: No.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform that there are no flights on your desired route.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for approaching us.