You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I am Gary Taylor and I want to book a flight ticket to visit TX-AUS.

ASSISTANT: Sure, Gary Taylor, Can you please provide your journey dates?

USER: My travelling dates are from 04/04 to 04/06.

ASSISTANT: Sure, please share your source details.

USER: My boarding point is TX-HOU.

ASSISTANT: Thanks for the details provided, please wait for a while. Thanks for your patience, we are sorry to inform you that no flights were found based on your schedule.

USER: No issue. Thank you.

ASSISTANT: Thank you for communicating with us, have a nice day.