You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Can you find a seat in business class to visit Denver?

ASSISTANT: Sure, can you please mention your preferable journey dates?

USER: I plan to travel on Aug 08 and return on Aug 10.

ASSISTANT: Can you please share your source and destination airport codes?

USER: My source point is AUS and my destination is DEN.

ASSISTANT: May I know your name please?

USER: My name is Catherine Thompson.

ASSISTANT: Do you have any specifications?

USER: I prefer a connecting flight.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, thank you for the details.

ASSISTANT: Thank you for reaching us, have a great day.