You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me for booking from HOU to reach CLT?

ASSISTANT: Sure, please share me your travel dates.

USER: My trip dates are on Jan 15 and 17.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Sure, Frank White is my name.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a connected flight.

ASSISTANT: May I know your class preferences?

USER: No, I am comfortable with any class.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Ok, thanks for your response.

ASSISTANT: Thank you for reaching us.