You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Amanda Philips.

ASSISTANT: What can I do for you Amanda Philips?

USER: My family were planned to go to Umlauf Sculpture Garden and museum at Austin. Make sure that I want a direct flight. Can you book a ticket for me?

ASSISTANT: Sure, I can book ticket for you. Kindly mention your dates of travel?

USER: My preferable dates are from 08/14 to 08/16.

ASSISTANT: Please provide your source and dest airport codes?

USER: My airport codes are from CLT to AUS. Price should not exceed 500.

ASSISTANT: Sorry for the inconvenience caused, there are no direct flights available on that particular dates.

USER: Ok, not an issue. Thank you for quick response.

ASSISTANT: Thanks for reaching us, we look forward to hear from you.