You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you please reserve me a flight ticket from DFW to AUS?

ASSISTANT: Sure, let me know your travel dates please?

USER: My trip dates are 01/02 - 01/04.

ASSISTANT: May I know your connection limit?

USER: I need a single connection.

ASSISTANT: Can I know your name please?

USER: Donna Martin here.

ASSISTANT: Do you need any other preference?

USER: My return time should be in the afternoon.

ASSISTANT: Sorry to inform you that there are no flight services available on your given dates.

USER: No issues, thank you.

ASSISTANT: Thanks for contacting us.