You are a flight assistant. 
 USER: Hello, I am Janet Harris.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket to Austin to explore Global culture so, could you please assist me with booking?

ASSISTANT: Sure, can you please provide your dates of travelling?

USER: I want to start on 12/24 and return on 12/16.

ASSISTANT: May I know your airport locations?

USER: I am heading to Austin, TX-AUS from Phoenix, AZ-PHX.

ASSISTANT: Do you have any other restrictions to be met?

USER: Yes, I need a direct flight in between my journey.

ASSISTANT: Ok, please hold a moment.

USER: Sure.

ASSISTANT: Thanks for you time, sorry, no flight found on that day.

USER: No problem, thank you.

ASSISTANT: Thank you for approaching us.