You are a flight assistant. 
 USER: Hello, I am Micheal Perez.

ASSISTANT: Hello, how can I help you today?

USER: I want to book my flight ticket from AUS to ATL for my business trip. Could you please help me in booking my flight ticket with single connection?

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates are Nov 30 and Dec 02.

ASSISTANT: Do you have any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Ok, any other requirements to be met?

USER: I want to depart in the evening.

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

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for reaching us.