You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket from LAX to IAH to meet my parents. Can you please book a direct flight ticket?

ASSISTANT: Sure, can you please share your trip dates?

USER: My journey dates are Nov 22 and Nov 24.

ASSISTANT: Any other requirements to be met?

USER: Please make sure it should be normal cost airline.

ASSISTANT: May I know your name?

USER: I am Barbara Thompson.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.