You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gregory Davis.

ASSISTANT: How can I assist you today?

USER: Please help me in booking my flight ticket from CLT to SEA?

ASSISTANT: Sure, could you share me your preferable dates?

USER: My travelling dates are 03/02 and 03/04.

ASSISTANT: Just give a moment.

USER: Ok, sure.

ASSISTANT: Sorry to say this, no flights are available on your desired route.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for opting us.