You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you help me to book a normal cost airline from LAS?

ASSISTANT: Sure, let me know your travel dates please?

USER: My travelling dates are Aug 06 and 08.

ASSISTANT: Could you please share me your destination airport code?

USER: Please book a direct flight to HOU for this trip.

ASSISTANT: Do you need any other requirements?

USER: No, I did not have any other requirements.

ASSISTANT: Ok, can I know your name please to proceed further?

USER: My name is Charles Young.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

USER: No issues, thank you for your time.

ASSISTANT: Thanks for contacting us.