You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be at your service today?

USER: Due to sudden change in my trip to another location, I would like to do some changes in existing my reservation. Can you please help me out?

ASSISTANT: Sure, may I know your name please?

USER: Carol Allen here.

ASSISTANT: May I know your airport codes please?

USER: JFK and CLT are my airport codes.

ASSISTANT: On which dates you like travel?

USER: Sept, 15 and Sept, 17 are my travel dates.

ASSISTANT: Do you have any other specifications?

USER: I need connecting flight.

ASSISTANT: I am sorry no flights found on your route.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for choosing us.