You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Stephen Wright. As my hobby is gardening, I want to collect different varieties of plants by attending flower festival.Can you book a flight ticket from Seattle, SEA?

ASSISTANT: Sure, I am here to help you. Can I know your travelling dates please?

USER: Journey dates are 03/05 to 03/07.

ASSISTANT: Could you please let me know where you want to land?

USER: Landing point is Austin, AUS.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting. Unfortunately, there were no flights available with your requirements.

USER: No problem, I will check with another airline. Thank you.

ASSISTANT: Thank you for approaching us.