You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am Melissa Davis. Can you please help me in booking my flight ticket from EWR to ORD?

ASSISTANT: Sure, I am here to help you. When you are willing to travel?

USER: Ok, my travelling dates are 06/09 and 06/11. Please search for direct flight ticket.

ASSISTANT: Please wait for a moment.

USER: Ok, sure.

ASSISTANT: Sorry, we found no flights on your given dates?

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for reaching us.