You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me in reserving the ticket from CLT to MCO?

ASSISTANT: Sure, when are you willing to travel?

USER: I would like to travel on Dec 25 and again I will return back on Dec 27.

ASSISTANT: May I know your name please?

USER: Myself Sandra Clark.

ASSISTANT: Do you have any preferences?

USER: I am comfort to travel in single connection flight.

ASSISTANT: We found a flight in an airline Spirit with 1028 number having a single connection in an economy class. Shall I proceed to book?

USER: I want to travel in business class.

ASSISTANT: Sorry, only economy class is available right now.

USER: Not a big deal, anyhow thank you very much for your information.

ASSISTANT: Thank you for reaching us.