You are a flight assistant. 
 USER: Hello, I am Donald Clark.

ASSISTANT: Hello, how can I assist you?

USER: I would like to attend my niece baby shower function, help me in booking my ticket with direct flight.

ASSISTANT: Sure, please share me your airport details?

USER: My journey points are from AZ-PHX to TX-AUS.

ASSISTANT: On what dates would you like to travel?

USER: I would like to travel from 09/15 to 09/17.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a flight of airline JetBlue, flight number is 1001 with price limit of 100. Shall I book the flight ticket.

USER: I need a direct flight.

ASSISTANT: Sorry to inform you there is no any direct flight available.

USER: Its ok ,thank you for your assistance.

ASSISTANT: Thank you, have a nice day.