You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: This is Amanda Hill.

ASSISTANT: How may I help you?

USER: I want to explore Water wall located in uptown Houston. Would you please help me with ticket booking?

ASSISTANT: Sure, can I know your preferable dates?

USER: I will depart on 03/23 and land back on 03/25.

ASSISTANT: Ok, let me know your source and destination airport codes?

USER: I will board from Austin, TX - AUS to Houston, TX - HOU.

ASSISTANT: Do you have any halt in between your journey?

USER: I want a direct flight.

ASSISTANT: Sorry, there are no flights available for given dates.

USER: No problem, Thanks for your help.

ASSISTANT: Thank you for reaching us.