You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Katherine King, want to travel from LAS to AUS. Please help me in booking my ticket.

ASSISTANT: Katherine King, can you please provide me with travel dates.

USER: Sure, my travel dates are from 01/30 to 02/01.

ASSISTANT: Give me a moment please.

USER: Sure.

ASSISTANT: Do you have any preferences?

USER: Yes, I need a connecting flight.

ASSISTANT: I regret to inform that there are no flights on your desired travel dates. Thank you for approaching us.

USER: It's ok, thank you.