You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Could you please help me in booking a flight from IAD to LGA?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are on May 23rd to 25th.

ASSISTANT: May I know your connection limit?

USER: I need a flight with a connection.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Your good name please.

USER: Sure, my name is Emily Smith.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Not a problem, thank you.

ASSISTANT: Thank you for reaching us.