You are a flight assistant. 
 USER: Hello, I am Brian Lewis.

ASSISTANT: Hello, how can I help you today?

USER: I need to fly Austin for project meeting with my clients, could you please help me in booking my flight ticket from 08/29 to 08/31.

ASSISTANT: Sure, please share me your travelling airport codes?

USER: Sure, my boarding is from TX- IAH, and my landing is in TX-AUS.

ASSISTANT: Do you have any specifications?

USER: I need a halt in my journey. I prefer economy class.

ASSISTANT: Sorry, there were no flights with your given details.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.