You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best serve you today?

USER: I am going to promote my business at Charlotte. Can you please help me in reserving the ticket from MCO to CLT?

ASSISTANT: Sure, please share me your trip dates.

USER: I would like to travel on June 18, and again I will return back on June 20.

ASSISTANT: Is there any class preferences for you?

USER: I am comfort with any class.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I am flexible with direct flight.

ASSISTANT: May I know your airline preference?

USER: My airline preference is normal-cost.

ASSISTANT: For booking, we need your good name. Please provide it.

USER: Myself Pamela Williams.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Not a big issue, anyhow thank you very much for your service.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.