You are a flight assistant. 
 USER: Hello, Samantha Smith here.

ASSISTANT: Hello Samantha Smith. How may I aid you today?

USER: Please book a ticket from Houston, TX - IAH to Atlanta, GA - ATL. As I need to attend as a guest for Rodeo and horse racing festivals at Atlanta.

ASSISTANT: May I know your planned travelling dates?

USER: On 09/16 I want to start. On 09/18 I will return.

ASSISTANT: Thank you for your details, there are no flights found with the specified dates. Thank you for making us as your assistance.

USER: No problem, I will try another flight. Thank you for your quick response.