You are a flight assistant. 
 USER: Hello, I am Katherine Perez.

ASSISTANT: Hello. How can I aid you?

USER: I need to book a flight ticket from AUS to SEA, Can you please help me for booking?

ASSISTANT: Sure, I can help you. Do you require any stopovers in your journey?

USER: I need a direct flight in between my journey.

ASSISTANT: Kindly assign your preferred dates of travelling?

USER: I would like to travel on 10/05 to 10/07.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.