You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: Margaret Campbell here. Can you book a flight ticket for my airport codes that is from AUS to DFW?

ASSISTANT: Sure, May i know your travelling dates?

USER: The travel dates are from June 07 to June 09.

ASSISTANT: Do you have any connection limit?

USER: I prefer a stopover flight.

ASSISTANT: Any other preferences?

USER: I prefer a after noon depart time.

ASSISTANT: Sorry, there are no flights found with your details.

USER: Not a problem. Thank you.

ASSISTANT: Thank you.