You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: In the month of December, I want to go New York JFK. Please check for the flight from IAD.

ASSISTANT: That's great, may I know your planned dates for the following trip please?

USER: My trip dates are from 12/14 to 12/16.

ASSISTANT: Please share your name for booking?

USER: Myself Melissa Hill.

ASSISTANT: Sorry to inform you, there is no availability found on your provided dates.

USER: It's ok.

ASSISTANT: Thank you for choosing our services.

USER: Most welcome.

ASSISTANT: Have a nice day Melissa Hill.