You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I provide assistance to you?

USER: My name is Carolyn Garcia.

ASSISTANT: Thank you for providing your name.

USER: Please book a flight from Dallas & Fort Worth, TX-DFW to Austin, TX-AUS, for flower festival.

ASSISTANT: Sure, can you please assign your  journey dates?

USER: Departure is by 11/15 and return on 11/17.

ASSISTANT: How much you can spend for ticket fare?

USER: Price limit is 500.

ASSISTANT: Do you need any halt in between journey?

USER: Connections limit is 1.

ASSISTANT: Ok, please wait for  a moment.

USER: Sure.

ASSISTANT: We are sorry to inform you that, we did not find any flights matching your preferences.

USER: Thanks for the assistance.

ASSISTANT: Thank you for choosing us. Have a good day.