You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for today?

USER: I am Sharon Williams. Could you help me in booking a flight ticket from TX - AUS to TX - IAH?

ASSISTANT: I am here to help you about your flight ticket booking. Can you please provide your planned dates of journey?

USER: I want to fly on 08/15, return on 08/17.

ASSISTANT: Please be on hold for sometime to check for the available flight for your journey.

USER: Sure.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling.

USER: Ok, no problem. Thank you.

ASSISTANT: You are welcome, thank you for reaching out here. Hope you have a nice day.