You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, may I know your travelling dates?

USER: My trip dates will be Nov 6th to Nov 8th.

ASSISTANT: Please mention your name.

USER: I am Jason Johnson.

ASSISTANT: Do you need any connecting flight?

USER: I prefer a direct flight.

ASSISTANT: Any other specifications to be met?

USER: I need a normal cost airline.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there are flight tickets available with the normal-cost.

USER: Its ok, thank you.

ASSISTANT: Thank you for reaching our service.