You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to book a flight ticket to CLT from JFK, can you please help me out?

ASSISTANT: Sure, let me know your travelling dates.

USER: Sure, my planned travelling dates are Dec 25 and Dec 27.

ASSISTANT: Please share your connection limit.

USER: Sure, I am looking for a flight with 1 connection.

ASSISTANT: Do you have any other requirements?

USER: Yes, my return time must be in evening.

ASSISTANT: May I know your name?

USER: Sure, my name is Emily Lewis.

ASSISTANT: Sorry, there are no flights found based on your details.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for choosing us.