You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I aid you?

USER: Could you please check the flight availability in normal cost airline?

ASSISTANT: Sure, We are here to help you. Can I know your travelling dates?

USER: My trip dates are Dec 12 and Dec 14.

ASSISTANT: Please share me your airport codes.

USER: I am heading to HOU from LAX.

ASSISTANT: Do you need any break?

USER: I need a direct flight.

ASSISTANT: May I know your name?

USER: My name is Jonathan Lee.

ASSISTANT: We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: Not a problem, thank you.

ASSISTANT: Thank you for reaching us.