You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Samantha Moore.

ASSISTANT: What kind of assistance do you expecting from our agency?

USER: I am planning to visit New York to attend a birthday celebration, can you please book me a ticket from CLT to JFK?

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable departure and return dates of travelling?

USER: My preferable departure date is 01/10 and return date is 01/12.

ASSISTANT: Please wait a moment to check the flights availability in your route.

USER: Sure, take your own time.

ASSISTANT: We regret to inform you that, all flights are busy in your route. So we can't provide a seat for you.

USER: Ok, not an issue. I will find any alternate for this trip.

ASSISTANT: It's alright.

USER: Anyways, thank you for providing information.

ASSISTANT: Thank you for reaching us, hope you have a great day.