You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what kind of help do you need from us?

USER: Can you please make a flight reservation from LAX to AUS?

ASSISTANT: Sure, may I know the time concern?

USER: Thank you, I want to return in the evening flight.

ASSISTANT: Ok, what are your preferred travel dates?

USER: My journey dates are from Nov 14 to Nov 16.

ASSISTANT: Please mention your name to proceed further?

USER: I am Patrick Carter.

ASSISTANT: Ok, please hold on.

USER: Sure.

ASSISTANT: Thanks for your time, there are no flights found on your travel dates for your journey.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for approaching us.