You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you help me to book a morning flight from AUS?

ASSISTANT: Let me know your travelling dates.

USER: My travelling dates are July 03 and 05.

ASSISTANT: Can I know your destination airport code?

USER: Please book a return ticket from OAK at afternoon flight.

ASSISTANT: Do you have any preference?

USER: I prefer connecting flight.

ASSISTANT: Let me know your name.

USER: My name is Paul Martinez.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: No issues, thank you for your information.

ASSISTANT: Thank you.