You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket from HOU to JFK, can you please help me?

ASSISTANT: Sure, we are rapturous to help you. In which month, you have planned your journey?

USER: My planned trip dates are Aug 15 and Aug 17 respectively.

ASSISTANT: Is there any airline preference for you?

USER: No, I am just looking for a direct flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Can I have your name please?

USER: Myself Ashley Clark.

ASSISTANT: Sorry to say, there are no flights available with your specifications.

USER: No issue, I will choose any other service. Thank you for checking.

ASSISTANT: Thank you for choosing us.