You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for today?

USER: Can you please help me in booking a flight ticket from AUS to IAH?

ASSISTANT: I am happy to help you in booking your flight ticket. Can you please provide your planned dates of journey?

USER: Sure, my travel dates are from Mar 11 to Mar 13.

ASSISTANT: Do you need any connecting flight for your journey?

USER: I need a connecting flight.

ASSISTANT: Please provide your name for booking purpose.

USER: Myself Pamela Evans.

ASSISTANT: Do you have any other requirements for your journey to met with?

USER: I would like to depart in the morning and return in the evening.

ASSISTANT: Sorry Pamela Evans, there are no flights which travels to your region on your planned dates of journey due to heavy bookings.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: You are welcome, thank you for reaching us.