You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I best serve you today?

USER: I would like to book a ticket from AUS to IAD, can you please help me with that?

ASSISTANT: Sure, can you please mention your depart and arrival dates of your journey?

USER: The travel dates are from 06/20 to 06/22.

ASSISTANT: Do you like to go with a connecting or direct flight?

USER: I need a flight with 1 connection limit.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: No.

ASSISTANT: Can I know your good name to proceed further?

USER: Sharon Mitchell here.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for choosing us.