You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Kevin Edwards. Can you please book a ticket from Phoenix, PHX to Austin, AUS to meet my friend?

ASSISTANT: Sure, please share your journey dates?

USER: I am willing to start my journey on 08/22 and return back on 08/24.

ASSISTANT: Do you have any specifications?

USER: I can afford up to 200.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flights found on your given dates.

USER: No problem. Thank you.

ASSISTANT: Thank you for choosing us.