You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephanie Wright.

ASSISTANT: How can I serve to you today?

USER: Can you please help me in booking my flight ticket from DFW to DCA?

ASSISTANT: I am very glad to help you with that booking.

USER: Ok, thank you.

ASSISTANT: Could you share me your travelling dates?

USER: My trip dates are 02/02 and 02/04.

ASSISTANT: Just give a moment.

USER: Ok, sure.

ASSISTANT: Sorry Wright, there are no flights available on your desired route.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for opting us.