You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I oblige you today?

USER: Please book me a flight ticket from PHX to AUS to meet my family.

ASSISTANT: Sure, when do you want to start and return on?

USER: I have planned to travel on Apr 19th and return on Apr 21st.

ASSISTANT: Do you need a connecting flight?

USER: I prefer connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No, thanks.

ASSISTANT: Can I know your good name?

USER: Daniel Brown.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.