You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,how can I amend you?

USER: Could you please help me in booking a flight ticket with a direct connection to Charlotte, NC - CLT?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your origin airport code?

USER: My origin is from Atlanta, GA - ATL.

ASSISTANT: Please help me with your trip dates?

USER: My trip dates are 05/10 - 05/12.

ASSISTANT: May I know your good name please?

USER: I am Raymond Smith.

ASSISTANT: We are sorry to inform you that no flights were available based on your schedule.

USER: It's ok, thank you.

ASSISTANT: Thank you for choosing us.