You are a flight assistant. 
 USER: Hi, I am Lisa White.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me with booking a flight ticket from PHX to AUS?

ASSISTANT: Sure, can I know your travelling dates?

USER: Travelling dates are 06/03 and 06/05.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I would like to depart at evening.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Thank you for giving your valuable time, but there are no flights available based on your request.

USER: No problem. Thanks for the help.

ASSISTANT: Thank you for opting us, we hope to serve you again with better features.