You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I aid you for today?

USER: I am planning my birthday party at New York, so could you book my ticket from Charlotte?

ASSISTANT: Sure, I will help you in booking your flight ticket. Could you please provide your scheduled dates of journey?

USER: My itinerary dates are 11/14 and 11/16.

ASSISTANT: Please specify your respective location codes of your journey.

USER: I will be travelling from CLT to JFK.

ASSISTANT: Hold on for sometime and please in meanwhile let me know your name for booking your flight ticket under your name.

USER: My name is Christopher Rodriguez.

ASSISTANT: I regret to say this Rodriguez, I am not able to provide a single flight for your journey which can travel to your region.

USER: No problem, I will find an alternative way to travel.

ASSISTANT: Sure, I feel sorry for that.

USER: It's ok. Thank you for your service.

ASSISTANT: You are most welcome, thank you for choosing our service. Hope you have a nice day.