You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to travel from TX - IAH to TX - AUS. Can you help me in booking my ticket?

ASSISTANT: Sure, can I know your travel dates please?

USER: My travel dates are 05/14 and 05/16.

ASSISTANT: May I know your name please?

USER: This is Ronald Garcia.

ASSISTANT: Sorry Ronald, there are no flights found as per your request.

USER: OK. Thank you for giving me information.

ASSISTANT: Thank you for contacting us, have a good day.

USER: Thank you, bye.