You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need to meet my friend in New York, can you please reserve flight ticket from CLT and EWR?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My travelling dates are Dec,29 and Dec,31.

ASSISTANT: May I know your connection limit?

USER: I need single connection limit.

ASSISTANT: Do you have any specifications?

USER: I need business class flight ticket.

ASSISTANT: May I know your name?

USER: Myself Katherine Adams.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Sorry Katherine Adams, no flights are available as per your requirements.

USER: That's ok, I will choose any other source to reach my destination.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your service.