You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me in booking my flight ticket from IAH to LAX?

ASSISTANT: Sure, could you please mention with your dates of journey?

USER: My trip dates will be Nov 30th and Dec 2nd.

ASSISTANT: May I know your good name please?

USER: I am Kevin White.

ASSISTANT: Are you looking for any other specifications please?

USER: I need a direct flight.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Kevin, there is no flight found as per your travelling details.

USER: Its ok, thank you.

ASSISTANT: You are welcome.