You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I am Stephanie Hernandez. I want to enjoy at Water wall in Houston, Can you help me in my booking?

ASSISTANT: Sure, please let me know your planned dates.

USER: My journey dates are from 04/01 to 04/03.

ASSISTANT: Could you please let me know your airport codes?

USER: My source is Austin, TX - AUS. My destination is Houston, TX - IAH.

ASSISTANT: Sorry, there are no flights with your requirement.

USER: Not an issue. Thank you for your kind information.

ASSISTANT: Have a great day.