You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Can you aid me in booking a flight ticket from JFK to HOU?

ASSISTANT: Sure, I am perky to help you.

USER: Thank you.

ASSISTANT: When you have planned to start and return?

USER: I am planning to start on Aug 24th and return back on Aug 26th.

ASSISTANT: Is there any class preference for you?

USER: Any class is fine for me.

ASSISTANT: Do you have any other requirements to meet?

USER: No. Make sure that it is a direct flight.

ASSISTANT: Can I have your name please?

USER: I am Jessica Wilson.

ASSISTANT: Ok, please wait for sometime.

USER: Take your time.

ASSISTANT: Thank you for waiting, sorry to say that no flights are found based on your given data.

USER: No issuers. Thank you for checking.

ASSISTANT: Thank you for availing us.