You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Do you have any flight to Houston, TX - HOU next month?

ASSISTANT: Sure, may I know your further travelling details please?

USER: I am Cynthia Davis from Atlanta, GA - ATL. My travel dates are 04/09 and 04/11.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Cynthia, there is no flight is available for you as per your travelling details. Thank you for your service.

USER: It's not a problem, I will try with other agency.

ASSISTANT: Ok, thank you.

USER: Thanks for helping me.

ASSISTANT: You are welcome.