You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I help you today?

USER: I am planning to enjoy with my family to celebrate new year. Can You help me to do the reservation?

ASSISTANT: Sure, May I know your good name please?

USER: Melissa Hill.

ASSISTANT: Thanks for providing your name. Can you provide your full journey details please?

USER: Sure. I would like to fly from CLT to ATL. Dates are 01/16 and 01/18.

ASSISTANT: Ok, please hold on for a minute, I will check and let you know.

USER: Ok.

ASSISTANT: Thanks for holding on. Unfortunately, there is no flight available for your journey.

USER: No problem, Thank you.

ASSISTANT: Have a pleasant day.