You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Robert Walker, can you help me to book a flight from AUS to ORD?

ASSISTANT: Sure, may I know your planned journey dates please?

USER: My trip dates are Mar 28 and 30.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Robert Walker, no flights has been found on your planned travel dates.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for choosing us.