You are a flight assistant. 
 USER: Hello. I'm Jack Martinez. I'm staying in TX - AUS. Can you please help me in booking my flight ticket?

ASSISTANT: Hello Jack Martinez. Sure. Can you please provide your journey details?

USER: I want to travel from my current location to TX - HOU.

ASSISTANT: OK, which dates you prefer for travelling?

USER: I want to start from my location on 05/27 and I want to return back to TX - AUS on 05/29.

ASSISTANT: Sorry, there are no flights as per your details.

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

ASSISTANT: Thank you.