You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I have to visit a Austin AUS from SEA. Can you find a flight for me?

ASSISTANT: Sure, can you please provide your journey dates?

USER: Ok, my itinerary dates are on May 04 and return May 06.

ASSISTANT: Are you looking for any preferred class?

USER: I need a single connecting flight to travel.

ASSISTANT: Do you have any other specification to be met?

USER: No.

ASSISTANT: May I know your name to proceed further?

USER: Ok, I am Karen Turner.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I will wait for your response.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: That's fine, not an problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.